Question

What is the surface area of a sphere with a radius of 12 units?

A. 14471 units2
B. 576 units2
C. 5767 units2
D. 2887 units2

Answer 1

here's the solution :

In a sphere,

`\boxed { \mathsf{surface \: area = 4\pi r {}^(2) }}`

let's solve

• 
  `s = 4 * \pi * 12 * 12`

• 
  `s = 144 * 4 * \pi`

• 
  `s = 576\pi \: \: \: unit {}^(2)`

hence, correct option is C. 576π unit²