Question

Find the surface area of the sphere to the nearest square unit. Use a calculator. A. 13 in.2 B. 50 in.2 C. 6 in.2 D. 3 in.2

Answer 1

B 50 in

Explanation:

Round up and divide by 2 and count to it ;)

Answer 2

The surface area of the sphere can be calculated using the following rule:
area of sphere = 4*pi*(radius)^2
Take pi as 22/7 and substitute in the equation with the given radius to calculate the area.