Question

How do you find the area of a sphere with a radius of 5 feet

Answer 1

$S \alpha = 4 \pi r^{2} \\ S \alpha = 4 \pi 5^{2} \\ S \alpha = 100 \pi \\ S \alpha = 314 ft^{2} ( aprrox.)$

Answer 2

It helps immensely if you know the formula for the area of a sphere.

Area of a sphere = (4 π) (radius)² . . . . . for ANY sphere.

If the radius is 5-ft, then Area = (4 π) (5)² = 100 π = 314.16... square feet (rounded)