Illustrative Math Alignment: Grade 8 Unit 2
Dilations, Similarity, and Introducing Slope
Lesson 8: Similar Triangles
Use the following Media4Math resources with this Illustrative Math lesson.
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Video Transcript: TI-Nspire Mini-Tutorial: Constructing the Orthocenter of a Triangle | Video Transcript: TI-Nspire Mini-Tutorial: Constructing the Orthocenter of a Triangle
This is the transcript for the TI-Nspire Mini-Tutorial entitled, Constructing the Orthocenter of a Triangle. This is part of a collection of video transcripts for the video tutorial series on using the TI-Nspire Graphing Calculator. To see the complete collection of transcripts, click on this link. Note: The download is a PDF file. Video Transcript LibraryTo see the complete collection of video transcriptsy, click on this link. |
Geometric Constructions with Triangles |
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Video Tutorial: Desmos Geometry Exploration: Classifying Triangles by Angle | Video Tutorial: Desmos Geometry Exploration: Classifying Triangles by Angle
This is part of a collection of video tutorials on the topic of using the Desmos Geometry tools to explore geometric concepts. |
Definition of a Triangle and Geometric Constructions with Triangles |
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Video Tutorial: Desmos Geometry Exploration: Triangle Basics | Video Tutorial: Desmos Geometry Exploration: Triangle Basics
This is part of a collection of video tutorials on the topic of using the Desmos Geometry tools to explore geometric concepts. |
Definition of a Triangle and Geometric Constructions with Triangles |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 1 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 2 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 3 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 4 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 5 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 6 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 7 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Parallel Lines Cut by a Transversal: Example 8 | This is part of a collection of video tutorials on parallel lines cut by a transversal. Using the properties of these lines, the value of an unknown angle is calculated. Note: The download is a PDF template for use in modeling the examples shown in the videos. |
Parallel Lines |
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Video Tutorial: Slope and Similar Triangles | Video Tutorial: Slope and Similar Triangles In this video explore the relationship between slope and similar triangles. |
Slope |
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VIDEO: Geometry Applications: Triangles | VIDEO: Geometry Applications: Triangles
In this program we explore the properties of triangles. We do this in the context of two real-world applications. In the first, we explore the triangular trusses in the Eiffel Tower and in the process learn about key properties of triangles. In the second application, we look at right-triangle-shaped sails on sail boat and why these are the ideal shape for efficient sailing. |
Definition of a Triangle and Applications of Triangles |
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VIDEO: Geometry Applications: Triangles, 1 | VIDEO: Geometry Applications: Triangles, Segment 1: Introduction
The Bank of China building in Hong Kong is a dramatic example of triangular support. The notion of triangular trusses is introduced, along with the key concepts developed in the rest of the program. |
Definition of a Triangle and Applications of Triangles |
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VIDEO: Geometry Applications: Triangles, 2 | VIDEO: Geometry Applications: Triangles, Segment 2: Triangles
The Eiffel Tower includes quite a number of exposed triangular trusses. The properties of triangles are used to explore and explain the frequent use of triangular trusses in many building. In particular, isosceles and equilateral triangular trusses are explored. In addition triangle postulates and similarity are explored and analyzed. |
Applications of Triangles |
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VIDEO: Geometry Applications: Triangles, 3 | VIDEO: Geometry Applications: Triangles, Segment 3: Right Triangles
The ancient port city of Corinth in Greece allows us to explore the evolution of sailing. The shapes of sails went from rectangular to triangular. The use of right-triangle-shaped sails changed the nature of sailing. Becoming less reliant on oarsmen and being able to sail under nearly any wind conditions, the sailboat made the conquest of the seas possible. We explore the properties of right triangles that make such sails ideal. |
Applications of Triangles and Definition of a Triangle |
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VIDEO: Ti-Nspire Mini-Tutorial, Video 38 | VIDEO: TI-Nspire Mini-Tutorial: Circumscribing a Circle about a Triangle
In this TI Nspire tutorial, the Geometry window is used to circumscribe a circle about a triangle. This video supports the TI-Nspire Clickpad and Touchpad. |
Geometric Constructions with Triangles |
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VIDEO: Ti-Nspire Mini-Tutorial, Video 51 | VIDEO: TI-Nspire Mini-Tutorial: Constructing the Circumcenter of a Triangle
In this TI Nspire tutorial, the Geometry window is used to construct a triangle and its circumcenter. This video supports the TI-Nspire Clickpad and Touchpad. |
Geometric Constructions with Triangles |
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VIDEO: Ti-Nspire Mini-Tutorial, Video 52 | VIDEO: TI-Nspire Mini-Tutorial: Constructing the Orthocenter of a Triangle
In this TI Nspire tutorial the Geometry window is used to construct the orthocenter of a triangle. This video supports the TI-Nspire Clickpad and Touchpad. |
Geometric Constructions with Triangles |
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Worksheet: Crossword Puzzle--Triangles | Worksheet: Crossword Puzzle--Triangles
This is part of a collection of math worksheets that are crossword puzzles of math vocabulary. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Definition of a Triangle |
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Worksheet: Identifying Shapes, Worksheet 1 | Worksheet: Identifying Shapes, Worksheet 1
This is part of a collection of math worksheets on the topic of geometric shapes. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle |
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Worksheet: Identifying Shapes, Worksheet 2 | Worksheet: Identifying Shapes, Worksheet 2
This is part of a collection of math worksheets on the topic of geometric shapes. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle |
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Worksheet: Identifying Shapes, Worksheet 3 | Worksheet: Identifying Shapes, Worksheet 3
This is part of a collection of math worksheets on the topic of geometric shapes. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle |
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Worksheet: Identifying Shapes, Worksheet 4 | Worksheet: Identifying Shapes, Worksheet 4
This is part of a collection of math worksheets on the topic of geometric shapes. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 01 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 01
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 02 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 02
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 03 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 03
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 04 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 04
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 05 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 05
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 06 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 06
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 07 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 07
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 08 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 08
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 09 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 09
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 10 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 10
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 11 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 11
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 12 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 12
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 13 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 13
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 14 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 14
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 15 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 15
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 16 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 16
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 17 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 17
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 18 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 18
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 19 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 19
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 20 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 20
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 21 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 21
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 22 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 22
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 23 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 23
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 24 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 24
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 25 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 25
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
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Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 26 | Worksheet: Using the Distance Formula to Calculate Triangular Area, Worksheet 26
This is part of a collection of math worksheets on the topic of using the distance formula to calculate length, area, or perimeter. To see the complete worksheet collection on this topic, click on this link. Note: The download is a PDF file.Related ResourcesTo see additional resources on this topic, click on the Related Resources tab.Worksheet LibraryTo see the complete collection of Worksheets, click on this link. |
Distance Formula and The Distance Formula |
