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.
Other articles related to "equable shape, shape, equable, equable shapes":
... In three dimensions, a shape is equable when its surface area is numerically equal to its volume ... As with equable shapes in two dimensions, you may find an equable solid, in which the volume is numerically equal to the surface area, by scaling any solid by an appropriate factor ...
Famous quotes containing the word shape:
“The beauty of the internal nature cannot be so far concealed by its accidental vesture, but that the spirit of its form shall communicate itself to the very disguise and indicate the shape it hides from the manner in which it is worn. A majestic form and graceful motions will express themselves through the most barbarous and tasteless costume.”
—Percy Bysshe Shelley (17921822)