Question

1. Consider a sphere with a radius with an 18 inches.

Part A: Determine the surface area of the sphere
Part B: Determine the volume of the sphere ​

Answer 1

A) Surface Area = 1296π in²

B) Volume = 7776π in³

Explanation:

A) Formula for surface area of a sphere is;

A = 4πr²

Where r is radius.

We are given radius = 18 inches.

Thus; A = 4π × 18²

A = 1296π in²

B) Volume of a sphere is;

V = (4/3)πr³

V = (4/3)π × 18³

V = 7776π in³