# What Is an Eleven Sided Shape Called?

A hendecagon is an eleven sided shape. The curve is also named undecagon or unidecagon. Some Canadian coins have this shape.
An eleven-sided plane figure is called a hendecagon or an undecagon.
An eleven sided figure is referred to as a hendecagon or sometimes undecagon. A typical hendecagon cannot be easily constructed by a compass and a straightedge because the number 11 is not a Pierpont thus making it impossible even with the usage of an angle trisector.
An eleven sided shape is called a hendecagon or undecagon. The interior angles of hendecagon are 147 degree and the exterior angles are 33 degrees. It also has a total of 44 distinct diagonals, which touch different vertices.
In geometry, a hendecagon is an 11-sided polygon with eleven edges and eleven angles. It is also called the 'undecagon'. A regular hendecagon has internal angles of 147.27 degrees.
A shape with eleven sides is called a Hendecagon. A shape with only ten sides is called a Decagon, and one with twelve sides would be called a Dodecagon.
Q&A Related to "What Is an Eleven Sided Shape Called"
 In geometry, there are names for all polygons up to ten sides. Pass ten, and there are accepted names for the even sided polygons. Currently there are two proposed names for an 11 http://answers.ask.com/Science/Mathematics/what_is...
 A hendecagon is an 11-sided polygon, also variously known as the undecagon or http://www.chacha.com/question/what-is-an-eleven-s...
 Hendecagon is 11. Dodecagon is 12. http://wiki.answers.com/Q/What_are_eleven_and_twel...