A polygon with 5 sides is called a. Pentagon.
http://wiki.answers.com/Q/What_is_polygon_with_5_s...

A fivesided polygon is called a pentagon. An example would be the shape of home
http://www.chacha.com/question/whatisapolygonw...

Sides Name. n Ngon. 3 Triangle. 4 Quadrilateral. 5 Pentagon. 6 Hexagon. 7 Heptagon. 8 Octagon. 10 Decagon. 12 Dodecagon.
http://answers.yahoo.com/question/index?qid=201202...

1. Subtract the interior angle from 180. For example, if the interior angle was 165, subtracting it from 180 would yield 15. 2. Divide 360 by the difference of the angle and 180 degrees
http://www.ehow.com/how_7296399_numbersidespolyg...
