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.
Read more about Equable Shape: Scaling and Units, Cyclic Polygons, Integer Dimensions, Equable Solids
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“There are moments when very little truth would be enough to shape opinion. One might be hated at extremely low cost.”
—Jean Rostand (1894–1977)