Question

Find the length of the diameter of a sphere with a surface area of 50.27 ft^2.

1.77 ft

3.54 ft

2 ft

4 ft

Answer 1

Sphere Surface Area     =     4 • π • r²

50.27 = 4 * PI * r^2

50.27 / (4 * PI) = r^2

4.0003594946 = r^2

r = sq root ( 4.0003594946)

radius =  2.0000898716

So the diameter = 4.0001797433

or it is roughly 4 feet