A rhombus has diagonals measuring 12 inches and 16 inches. What is the perimeter of the rhombus, in inches?
The diagonals bisect each other
One side length = sqrt [ ( 12/2 )^2 + (16/2)^2 ] = sqrt [ 6^2 + 8^2 ] = sqrt [ 100] = 10
Perimeter = 4 * 10 = 40
