polygons
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| polygon | a closed figure in a plane made up of line segments called sides that intersect only at their endpoints called vertices.
their endpoints called vertices.
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| convex | polygons such that no line containing a side of the polygon contains a point inside the interior of the polygon.
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| concave | polygons such that when lines containing a side of the polygon do contain interior points. Another way to think about convex polygons is polygons in which the diagonals of the polygon have no points on the exterior of the polygon.
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| regular | polygon that is both equilateral and equiangular
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| apothem | a segment that extends from the center of a regular polygon perpendicularly to a side of the regular polygon.
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| n-gon | polygons with more than 12 sides
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| exterior angle | made by extending one side of a polygon such that the interior and exterior angle are a linear pair
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Created by:
Promethean
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