Question

The surface area of a sphere is found using the formula SA - 477², where r is the radius. If the surface area of a

sphere is 64 square feet, what is the radius, in feet?

Answer 1

Explanation:

he surface area of a sphere is given as SA = 4πr^2, where r is the radius.

If the surface area is 64 square feet, then:

64 = 4πr^2

Dividing both sides by 4π:

16/π = r^2

Taking the square root of both sides:

r = √(16/π)

The radius, in feet, is approximately 2.8 feet.