Harry measures the big prize wheel on a game show and calculates that it has an area of 12.56 square yards. What is the prize wheel diameter?

The prize wheel diameter is 4.00 yards

Step-by-step explanation:

Area (A) = πd^2/4

πd^2 = 4A

d^2 = 4A/π

d (diameter) = √ (4A/π)

A = 12.56 square yards, π = 3.142

d = √ (4*12.56/3.142) = √15.99 = 4.00 yards