Question

radio station KLUV broadcasts in all directions to a distance of 50 mi. How many square miles are in the stations broadcast area?

Answer 1

The stations sit at the center of a circle with a radius of 50mi.

Using the formula

A=(pi)R^2
A=(pi)50^2
A=(pi)2500
A=7853.98

The stations broadcast to an area of 7853.98 square miles