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.

Read more about Equable Shape:  Scaling and Units, Cyclic Polygons, Integer Dimensions, Equable Solids

Famous quotes containing the word shape:

    ‘A Shape all light, which with one hand did fling
    Dew on the earth, as if she were the dawn,
    And the invisible rain did ever sing

    ‘A silver music on the mossy lawn;
    Percy Bysshe Shelley (1792–1822)