Question

What is the surface area of a sphere with radius 3?A. 377 units2B. 1870 units2C. 3677 units2D. 97 units2

Answer 1

Given:

a.) A sphere with a radius of 3.

For a sphere, will be using the following formula for its surface area:

$\text{ Surface Area = }4\pi r^2$

Where,

r = radius of the sphere

We get,

$\text{ Surface Area = }4\pi r^2$$\text{ = 4(3.14)(3)}^2$$\text{ = 4(3.14)(9)}$$undefined$