Internet Encyclopedia of Science
POLYGONS
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

                   • HOME
• ABOUT
• CATEGORIES
• COPYRIGHT
• NEWSLETTER

  



heptagon


regular polyhedron
A polygon with 7 sides. The sum of the interior angles of a polygon is 900°. In the case of a regular heptagon, each interior angle is approximately 128.57°.

The area of a regular heptagon of side length a is (7/4)a2 cot(π/7).


Related category

   • POLYGONS


Also on this site:

Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History




BACK TO TOP