1) Geometric shape
Found on
https://www.crosswordclues.com/clue/equable-shape
A two-dimensional equable shape (or perfect shape) is one whose area is numerically equal to its perimeter. For example, a right angled triangle with sides 5, 12 and 13 has area and perimeter both equal to 30 units. ==Scaling and units== Solving this yields that x = 4, so a 4 × 4 square is equable. ==Tangential polygons== A tangential polygon is ...
Found on
http://en.wikipedia.org/wiki/Equable_shape
No exact match found.
