Equilateral

An equilateral polygon has all sides of the same length. By definition a square is always equilateral (see also rectangle):

 x x x x 
 x x x x 
 x x x x 
 x x x x 

This triangle is also equilateral:

     x 
    x x 
   x x x 
  x x x x 
 x x x x x

Any n-sided polygon which has n sides of equal length can be considered an equilateral. All equilaterals are convex geometric shapes.