Question

Find the surface area (Leave your answer in terms of π) of a sphere with a radius of 12. Use 4πr² to solve.

76π

576π

48π

580π

Answer 1

576π

Explanation:

Surface Area of a Sphere

• 4πr²

Given

• r = 12

Solving

• S.A. = 4 x π x (12)²
• S.A. = 4 x 144 x π
• S.A. = 576π

Answer 2

The answer is 576π. Break down the formula: 4πr²=4*π*r(12)². 12² or 12*12 is 144. You still have 4 and π. So multiply 144 by the 4 to get 576 and finally multiply that by pi to get you the final answer of 576π.