Polygons: Regular
An n-sided polygon in which the sides are all the same length and are symmetrically placed about a common center (i.e., the polygon is both equangular and equilateral). The sum of perpendiculars from any point to the sides of a regular polygon of n sides is n times the apothem. Only certain regular polygons are "constructible" with ruler and straight edge.
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Polygons: Interactive Quiz
A polygon is a 2-dimensional closed shape with straight sides. Regular and irregular polygons. Angle properties of polygons. Calculating the interior and exterior angles of regular polygons. The simplest polygon is a triangle (a 3-sided shape).
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Polygons: Dead Parrot? Polygon
Despite what you may think a polygon is not a dead parrot (Polly gone…geddit?). A polygon is just a fancy name for any flat shape (also known as a 2-dimensional shape) which is made by drawing straight lines which all join together.
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Polygons: Tesellations
Objective: To understand which regular polygons will tile by themselves, which won't, and why.
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