Question

What is the surface area of a sphere with a radius of 16 units?

Answer 1

D. 1024 π units²

Explanation:

We have sphere, with a radius of 16 units.

The surface area of a sphere is given by the following formula:

Surface Area of a sphere = 4 π r²

We already know r, which is 16. So,

SA = 4 * π * 16² = 256 * 4 * π = 1024 π units²

That's enough for our answer, which matches answer D from the list.

If we want to have an actual number.... we would have to multiply 1024 by π.

SA = 1024 * π = 3217 units²

Answer 2

option D

1024π units²

Explanation:

Given in the question that radius of a sphere = 16 unit

Formula to use to calculate the surface area of the sphere

4 π r²

here r is the radius of the sphere

4 π (16)²

4 π (256)

1024π units²

Surface area of a sphere with radius 16 units = 1024π units²