# Stadium Area and Perimeter Calculator

Find the area and perimeter of a stadium for given values.

In geometric stadium shape is a circle of radius (r) that has been cut in half through the center and the 2 ends are then separated by a rectangle of height (r) and width (a).

therefore :

Area (A) = π r^{2} + 2ra

Perimeter (P) = 2( π r + a )

π = 3.1415926535898