1 Answer

Gaurav Agrawal · Answer 1 · 2023-10-13T14:33:27+0000

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,

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