Question

The area enclosed by one shooting circle is 401.92 square yards. Write and solve a formula to find the radius of the shooting circle. Use 3.14 for pi.

Answer 1

The formula for area in terms of radius is

... A = πr²

Solving this for r, we get

... A/π = r²

... r = √(A/π) . . . . . formula for the radius

For your given area, the radius is approximately

... r = √(401.92/3.14) = √128 = 8√2

... r ≈ 11.3 . . . yards