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Polygons

Learn about the different types of polygons, such as convex and concave, and their properties. Explore the concept of diagonals and discover the theorems related to polygon angles. Get to know regular polygons and enjoy a math-related joke!

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Polygons

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  1. Polygons Section 1-6

  2. polygon – a many-sided figure • convex polygon – a polygon such that no line containing a side of the polygon contains a point in the interior of the polygon.

  3. concave convex

  4. 3 sides: triangle • 4 sides: quadrilateral • 5 sides: pentagon • 6 sides hexagon • 8 sides: octagon • 10 sides: decagon • n sides: n-gon

  5. diagonal – a segment joining 2 nonconsecutive vertices of the polygon When referring to a polygon, list its consecutive vertices in order. B A F C E D

  6. Theorem 2-13 • The sum of the measures of the angles of a convex polygon with n sides is

  7. Theorem 2-14 • The sum of the measures of the exterior angles of any convex polygon, one angle at each vertex is 360.

  8. regular polygon – a polygon that is both equiangular and equilateral

  9. Joke Time Where do math teachers go on vacation? To Times Square

  10. Why did the foal cough? Because he was a little horse!

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