NYS

These are the resources that support this NYS Standard.

NY-8.G.5: Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so.

There are 105 resources.
Title Description Thumbnail Image Curriculum Topics

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.

Video Tutorial: Parallel Lines Cut by a Transversal: Example 4 Parallel Lines

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.

Video Tutorial: Parallel Lines Cut by a Transversal: Example 5 Parallel Lines

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.

Video Tutorial: Parallel Lines Cut by a Transversal: Example 6 Parallel Lines

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.

Video Tutorial: Parallel Lines Cut by a Transversal: Example 7 Parallel Lines

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.

Video Tutorial: Parallel Lines Cut by a Transversal: Example 8 Parallel Lines