Geometry Problems, Online Education

Geometry: Regular Decagon and Decagram, Star Polygon

Regular Decagon and Decagram, Star Polygon

A decagon is a polygon with ten sides and ten angles.

A regular decagon is a polygon which is equiangular (all angles are congruent) and equilateral (all sides have the same length).

A decagram is a ten-pointed star drawn with ten straight strokes. Its Schläfli symbol is {10/3} with the second number representing the vertex interval step from a regular decagon, {10/1}.

The Schlafli symbol is a notation of the form {p,q,r,...} that defines regular polytopes and tessellations. Read more.

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Last updated: Feb 11, 2017