Use the following Media4Math resources with this Illustrative Math lesson.
Thumbnail Image | Title | Body | Curriculum Nodes |
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Math Clip Art--Geometry Basics--Polygon Basics 06 |
Math Clip Art--Geometry Basics--Polygon Basics 06TopicGeometry Basics DescriptionThis image is part of a series designed to teach fundamental concepts about polygons. It presents a comparison between an irregular pentagon and a regular pentagon, further reinforcing the concept that polygons can be either regular or irregular. This visual representation helps students understand how these classifications apply to more complex polygons. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Polygon Basics 07 |
Math Clip Art--Geometry Basics--Polygon Basics 07TopicGeometry Basics DescriptionThis image is part of a series designed to teach fundamental concepts about polygons. It showcases an irregular hexagon alongside a regular hexagon, further emphasizing the concept that polygons can be either regular or irregular. This visual comparison helps students extend their understanding of polygon classifications to shapes with even more sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Polygon Basics 08 |
Math Clip Art--Geometry Basics--Polygon Basics 08TopicGeometry Basics DescriptionThis image is part of a series designed to teach fundamental concepts about polygons. It illustrates a polygon with its interior angles labeled, demonstrating that the sum of these angles relates to the number of sides. This visual representation helps students understand the relationship between a polygon's structure and its angular properties. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Polygon Basics 09 |
Math Clip Art--Geometry Basics--Polygon Basics 09TopicGeometry Basics DescriptionThis image is part of a series designed to teach fundamental concepts about polygons. It presents a table that illustrates the relationship between the number of sides in a polygon, the number of triangles that can be formed within it, and the sum of its interior angles. The caption emphasizes that the sum of interior angles depends on the number of sides, reinforcing this crucial geometric principle. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Polygon Basics 10 |
Math Clip Art--Geometry Basics--Polygon Basics 10TopicGeometry Basics DescriptionThis image is part of a series designed to teach fundamental concepts about polygons. It features an illustration of a polygon with its exterior angles highlighted, accompanied by a caption stating that the sum of the interior angles of a polygon is based on the number of triangles that can be formed. This visual representation helps students understand a key property of polygons that remains constant regardless of the number of sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 01 |
Math Clip Art--Geometry Basics--Regular Polygon 01TopicGeometry Basics DescriptionThis math clip art image serves as the introductory title card for a series on regular polygons. The simple yet effective design features the words "Regular Polygons" prominently displayed, setting the stage for the educational content to follow. This image is crucial in capturing students' attention and clearly establishing the topic of study. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 02 |
Math Clip Art--Geometry Basics--Regular Polygon 02TopicGeometry Basics DescriptionThis math clip art image is the second in a series about regular polygons, focusing on the fundamental definition of a polygon. The illustration showcases a general polygon shape, accompanied by a clear, concise caption that defines a polygon as a closed figure with a distinct number of straight sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 03 |
Math Clip Art--Geometry Basics--Regular Polygon 03TopicGeometry Basics DescriptionThis math clip art image is the third in a series about regular polygons, introducing the specific definition of a regular polygon. The illustration features a regular pentagon, accompanied by a caption explaining that a regular polygon has congruent sides and congruent angles. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 04 |
Math Clip Art--Geometry Basics--Regular Polygon 04TopicGeometry Basics DescriptionThis math clip art image is the fourth in a series about regular polygons, focusing on the equilateral triangle. The illustration presents a clear example of an equilateral triangle, accompanied by a caption highlighting its key properties: 60° angles and three congruent sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 05 |
Math Clip Art--Geometry Basics--Regular Polygon 05TopicGeometry Basics DescriptionThis math clip art image serves as a title card for the process of constructing a regular triangle. It introduces a new section in the series on regular polygons, shifting focus from definitions and properties to the practical application of geometric principles. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 06 |
Math Clip Art--Geometry Basics--Regular Polygon 06TopicGeometry Basics DescriptionThis math clip art image is the sixth in the series about regular polygons and the first step in constructing a regular triangle. It illustrates the initial stage of the construction process, showing a compass being used to draw a circle. The caption clearly states that this is Step 1 in constructing a regular triangle. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 07 |
Math Clip Art--Geometry Basics--Regular Polygon 07TopicGeometry Basics DescriptionThis math clip art image is the seventh in the series about regular polygons and represents Step 2 in constructing a regular triangle. The illustration shows a line drawn through the center of the circle created in the previous step. This step is crucial in establishing the base for the equilateral triangle. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 08 |
Math Clip Art--Geometry Basics--Regular Polygon 08TopicGeometry Basics DescriptionThis math clip art image is the eighth in the series about regular polygons and illustrates Step 3 in constructing a regular triangle. The image shows the construction of a semi-circle using the compass, building upon the previous steps of drawing a full circle and a line through its center. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 09 |
Math Clip Art--Geometry Basics--Regular Polygon 09TopicGeometry Basics DescriptionThis math clip art image is the ninth in the series about regular polygons and represents Step 4 in constructing a regular triangle. The illustration highlights the centers used in the previous construction steps, emphasizing their importance in the process. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 10 |
Math Clip Art--Geometry Basics--Regular Polygon 10TopicGeometry Basics DescriptionThis math clip art image is part of a series on regular polygons, focusing on the construction of an equilateral triangle. The illustration shows Step 5 of the process, where key points are highlighted in red. This visual aid is crucial in guiding students through the precise steps of geometric construction. Using math clip art like this in geometry lessons helps students visualize abstract concepts and follow complex procedures. It bridges the gap between theoretical knowledge and practical application, making the learning process more engaging and effective. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 11 |
Math Clip Art--Geometry Basics--Regular Polygon 11TopicGeometry Basics DescriptionThis math clip art image continues the series on regular polygons, illustrating Step 6 in constructing an equilateral triangle. The image shows the actual construction of the triangle based on the points and arcs established in previous steps. This visual representation is essential in demonstrating how geometric principles come together to form regular shapes. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 12 |
Math Clip Art--Geometry Basics--Regular Polygon 12TopicGeometry Basics DescriptionThis math clip art image is part of the series on regular polygons, focusing on Step 7 of constructing an equilateral triangle. The illustration emphasizes the congruent sides of the newly constructed triangle, a key characteristic of equilateral triangles. This visual aid is crucial in helping students understand the defining properties of regular polygons. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 13 |
Math Clip Art--Geometry Basics--Regular Polygon 13TopicGeometry Basics DescriptionThis math clip art image is part of the series on regular polygons, illustrating Step 8 in the construction of an equilateral triangle. The image emphasizes the completed equilateral triangle, showcasing the result of the step-by-step construction process. This visual representation is crucial in reinforcing the concept of regular polygons and their properties. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 14 |
Math Clip Art--Geometry Basics--Regular Polygon 14TopicGeometry Basics DescriptionThis math clip art image continues the series on regular polygons, focusing on Step 9 of constructing an equilateral triangle. The illustration points out another equilateral triangle formed during the construction process. This visual aid is essential in demonstrating how geometric constructions can yield multiple regular shapes simultaneously. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 15 |
Math Clip Art--Geometry Basics--Regular Polygon 15TopicGeometry Basics DescriptionThis math clip art image is part of the series on regular polygons, illustrating Step 10 in the construction of an equilateral triangle. The image highlights the central angle and its intercepted arc within the construction. This visual aid is crucial in demonstrating the relationship between central angles and regular polygons. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 16 |
Math Clip Art--Geometry Basics--Regular Polygon 16TopicGeometry Basics DescriptionThis math clip art image continues the series on regular polygons, focusing on Step 11 of constructing an equilateral triangle. The illustration highlights the resulting 60° inscribed angle within the construction. This visual aid is essential in demonstrating the relationship between inscribed angles and central angles in a circle. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 17 |
Math Clip Art--Geometry Basics--Regular Polygon 17TopicGeometry Basics DescriptionThis math clip art image is part of the series on regular polygons, illustrating Step 12 in the construction of an equilateral triangle. The image emphasizes that the inscribed triangle within the circle is equilateral. This visual representation is crucial in demonstrating how circular properties guarantee the formation of a regular polygon. |
Definition of a Polygon | |
Math Clip Art--Geometry Basics--Regular Polygon 18 |
Math Clip Art--Geometry Basics--Regular Polygon 18TopicGeometry Basics DescriptionThis math clip art image concludes the series on constructing a regular triangle, showcasing the final result of the step-by-step process. The illustration presents the completed equilateral triangle as the simplest regular polygon. This visual representation is essential in summarizing the construction process and reinforcing the concept of regular polygons. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Kite Shape 1 |
Math Clip Art--Kite Shape 1TopicGeometry Concepts DescriptionThis image features a kite shape, in this case a circular one. Ordinarily a kite is a quadrilateral with two pairs of adjacent equal-length sides. The diagonals intersect at right angles, and one diagonal bisects the other, creating a symmetrical shape. Kite shapes are important in geometry for understanding properties like symmetry, area, and perimeter. They are used in various mathematical applications, including tiling and design. Teacher's Script: "Examine this kite. What makes it a kite in the everyday understanding of it? Is it a kite in geometric terms?" |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 10 |
Math Clip Art--Kite Shape 10TopicGeometry Concepts DescriptionThis image features a kite shape, a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 11 |
Math Clip Art--Kite Shape 11TopicGeometry Concepts DescriptionThis image depicts a kite shape, characterized by two pairs of adjacent equal-length sides and diagonals that intersect at right angles. This geometric configuration is symmetrical and unique. Kite shapes are used to explore geometric properties such as symmetry, area, and perimeter. They are applicable in various fields, including mathematics, design, and architecture. Teacher's Script: "Look at this kite shape. How do its symmetrical properties and intersecting diagonals help us understand its geometry? What are some mathematical concepts you can explore using kite shapes?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 12 |
Math Clip Art--Kite Shape 12TopicGeometry Concepts DescriptionThis image illustrates a kite shape, a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 13 |
Math Clip Art--Kite Shape 13TopicGeometry Concepts DescriptionThis image illustrates a triangular-shaped kite. Geometrically, a kite is a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Observe this kite. How is this a kite in the everyday sense? Is this a kite in the geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 14 |
Math Clip Art--Kite Shape 14TopicGeometry Concepts DescriptionThis image features a triangular-shaped kite. Geometrically, a kite is a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Examine this kite. How is it a kite in the everyday sense? Is it geometrically a kite?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 15 |
Math Clip Art--Kite Shape 15TopicGeometry Concepts DescriptionThis image depicts a triangular-shaped kite. Geometrically, a kite is characterized by two pairs of adjacent equal-length sides and diagonals that intersect at right angles. This geometric configuration is symmetrical and unique. Kite shapes are used to explore geometric properties such as symmetry, area, and perimeter. They are applicable in various fields, including mathematics, design, and architecture. Teacher's Script: "Look at this kite. How is this a kite in the everyday sense? Is this a kite in the geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 16 |
Math Clip Art--Kite Shape 16TopicGeometry Concepts DescriptionThis image illustrates a triangular-shaped kite. Geometrically, a kite is a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Observe this kite. How is this a kite in the everyday sense? Is this a kite in the geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 2 |
Math Clip Art--Kite Shape 2TopicGeometry Concepts DescriptionThis image depicts another variation of a kite shape, in this case a circular shape. Geometrically, a kite is characterized by two pairs of adjacent equal-length sides and diagonals that intersect at right angles. This geometric configuration is symmetrical and unique. Kite shapes are used to explore geometric properties such as symmetry, area, and perimeter. They are applicable in various fields, including mathematics, design, and architecture. Teacher's Script: "Look at this kite. How is it a kite in the everyday sense? Is it a kite in a geometric sense?" |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 3 |
Math Clip Art--Kite Shape 3TopicGeometry Concepts DescriptionThis image illustrates a circular kite shape. Geometrically, a kite is a a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Observe this kite. How is a kite in the everyday sense of the word? Is it a kite in the geometric sense?" |
Definition of a Circle, Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 4 |
Math Clip Art--Kite Shape 4TopicGeometry Concepts DescriptionThis image features a hexagonal kite shape. Geometrically, a kite is a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Examine this kite. How is it a kite in the everyday sense? Is it a kite in a geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 5 |
Math Clip Art--Kite Shape 5TopicGeometry Concepts DescriptionThis image depicts a hexagonal kite shape. Geometrically, a kite is characterized by two pairs of adjacent equal-length sides and diagonals that intersect at right angles. This geometric configuration is symmetrical and unique. Kite shapes are used to explore geometric properties such as symmetry, area, and perimeter. They are applicable in various fields, including mathematics, design, and architecture. Teacher's Script: "Look at this kite. How is this a kite in the everydays sense of the word? Is it a kite in the geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 6 |
Math Clip Art--Kite Shape 6TopicGeometry Concepts DescriptionThis image illustrates a hexagonal kite shape. Geometrically, a kite is a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. Teacher's Script: "Observe this kite. How is it a kite in the everyday sense? Is it a kite in the geometric sense?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 7 |
Math Clip Art--Kite Shape 7TopicGeometry Concepts DescriptionThis image features a kite shape, a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 8 |
Math Clip Art--Kite Shape 8TopicGeometry Concepts DescriptionThis image depicts a kite shape, characterized by two pairs of adjacent equal-length sides and diagonals that intersect at right angles. This geometric configuration is symmetrical and unique. Kite shapes are used to explore geometric properties such as symmetry, area, and perimeter. They are applicable in various fields, including mathematics, design, and architecture. Teacher's Script: "Look at this kite shape. How do its symmetrical properties and intersecting diagonals help us understand its geometry? What are some mathematical concepts you can explore using kite shapes?" |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Kite Shape 9 |
Math Clip Art--Kite Shape 9TopicGeometry Concepts DescriptionThis image illustrates a kite shape, a quadrilateral with two pairs of adjacent equal-length sides and diagonals that intersect at right angles. The symmetry and unique properties of kite shapes make them interesting geometric figures. Kite shapes are used to explore properties such as symmetry, area, and perimeter. They are applicable in various mathematical contexts, including geometry and design. |
Definition of a Polygon and Definition of a Triangle | |
Math Clip Art--Geometry Concepts--Octagon |
Math Clip Art--OctagonTopicGeometry Concepts DescriptionThis image shows two octagons, one regular and one not. An octagon is a polygon with eight sides and eight angles. Octagons are often seen in everyday objects, such as stop signs, and are used in various design and architectural applications. Understanding octagons involves exploring properties such as symmetry, angle measures, and area. They are used in mathematical contexts to study polygons and their relationships with other geometric figures. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Polygons--Hexagon |
Math Clip Art--Polygons--HexagonTopicGeometry Concepts DescriptionThis image illustrates two hexagons: one regular and one irregular. A hexagon is a six-sided polygon. In a regular hexagon, all sides and angles are equal, with each interior angle measuring 120 degrees. This symmetry gives it a balanced and uniform appearance. An irregular hexagon, by contrast, has sides and angles that are not all equal. This lack of uniformity means that the hexagon can take on a variety of shapes, depending on the specific lengths and angles of its sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Polygons--Octagon |
Math Clip Art--Polygons--OctagonTopicGeometry Concepts DescriptionThis image shows two octagons: one regular and one irregular. An octagon is an eight-sided polygon. In a regular octagon, all sides and angles are equal, with each interior angle measuring 135 degrees. This regularity gives it a symmetrical and balanced appearance. An irregular octagon, on the other hand, has sides and angles that are not all equal. This asymmetry means that the octagon can have a variety of shapes, depending on the specific lengths and angles of its sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Polygons--Pentagon |
Math Clip Art--Polygons--PentagonTopicGeometry Concepts DescriptionThis image depicts two pentagons: one regular and one irregular. A pentagon is a five-sided polygon. In a regular pentagon, all sides and angles are equal, with each interior angle measuring 108 degrees. This regularity gives it a symmetrical and balanced appearance. An irregular pentagon, however, has sides and angles that are not all equal. This asymmetry allows the pentagon to take on various shapes, depending on the specific lengths and angles of its sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Polygons--Quadrilateral |
Math Clip Art--Polygons--QuadrilateralTopicGeometry Concepts DescriptionThis image illustrates two quadrilaterals: one regular and one irregular. A quadrilateral is a four-sided polygon. In a regular quadrilateral, such as a square, all sides and angles are equal, with each interior angle measuring 90 degrees. This regularity gives it a symmetrical and balanced appearance. An irregular quadrilateral, however, has sides and angles that are not all equal. This asymmetry allows the quadrilateral to take on various shapes, depending on the specific lengths and angles of its sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Polygons--Triangle |
Math Clip Art--Polygons--TriangleTopicGeometry Concepts DescriptionThis image shows two triangles: one regular and one irregular. A triangle is a three-sided polygon. In a regular triangle, also known as an equilateral triangle, all sides and angles are equal, with each interior angle measuring 60 degrees. This regularity gives it a symmetrical and balanced appearance. An irregular triangle, however, has sides and angles that are not all equal. This asymmetry allows the triangle to take on various shapes, depending on the specific lengths and angles of its sides. |
Definition of a Polygon | |
Math Clip Art--Geometry Concepts--Stop Sign |
Math Clip Art--Stop SignTopicGeometry Concepts DescriptionThis image depicts a stop sign, which is an octagon - a polygon with eight sides and eight angles. In geometry, the stop sign is a perfect example of a regular octagon, where all sides are equal in length and all interior angles are equal (135 degrees). The octagonal shape of the stop sign is significant in traffic control due to its unique and easily recognizable shape. This shape allows for quick identification even in low visibility conditions. In geometry, it serves as a practical application of octagon properties and symmetry. |
Definition of a Polygon | |
Math Example--Geometric Shapes--Identifying Shapes--Example 1 |
Math Example--Geometric Shapes--Identifying Shapes--Example 1
This is part of a collection of math examples that focus on geometric shapes. |
Definition of a Polygon | |
Math Example--Geometric Shapes--Identifying Shapes--Example 2 |
Math Example--Geometric Shapes--Identifying Shapes--Example 2
This is part of a collection of math examples that focus on geometric shapes. |
Definition of a Polygon | |
Math Example--Geometric Shapes--Identifying Shapes--Example 3 |
Math Example--Geometric Shapes--Identifying Shapes--Example 3
This is part of a collection of math examples that focus on geometric shapes. |
Definition of a Polygon | |
Math Example--Geometric Shapes--Identifying Shapes--Example 4 |
Math Example--Geometric Shapes--Identifying Shapes--Example 4
This is part of a collection of math examples that focus on geometric shapes. |
Definition of a Polygon |