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Polygons

Polygons. Objective: Define and classify polygons and related terms. Polygons. Not Polygons. Polygon A closed figure in a plane, formed by connecting line segments end point to endpoint with each segment intersecting exactly two others. Side : Each line segment Vertex :

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Polygons

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  1. Polygons Objective: Define and classify polygons and related terms.

  2. Polygons Not Polygons • Polygon • A closed figure in a plane, formed by connecting line segments end point to endpoint with each segment intersecting exactly two others. • Side: • Each line segment • Vertex: • Each endpoint, where the sides meet.

  3. Classify • By number of sides • Naming a polygon: • List vertices in consecutive order. CBAED BCADE Pentagon ABCDE

  4. Diagonal: • A line segment that connects two nonconsecutive vertices. • Convex • No diagonal is outside the polygon. • Concave • At least one diagonal is outside the polygon.

  5. Congruent polygons • Corresponding sides and angles are congruent. (same size and shape) • Equilateral polygon • All sides have equal length. • Equiangular polygon • All angles have equal measure. • Regular polygon • Both equilateral and equiangular. Pg. 56 #1-21 Due Wednesday Quiz Tomorrow

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