What is an 11-Sided Shape Called?
Answer – An 11-sided shape is called a hendecagon.
Explanation:
The word ‘hendecagon’ comes from the Greek words hendeka, meaning ‘eleven,’ and gon, meaning ‘corner.’ Thus, a hendecagon is a 11-sided polygon with 11 corners. It also includes 11 interior angles, each of which measures ≈147.273°.
The 11-sided shape has often been employed in coinage. The Canadian dollar coin (or loonie), for example, features a hendecagon on its top surface.
Below is an image of a regular hendecagon:
