Question

A ball has a radius of 1 foot.

What is the surface area of the ball?

Answer 1

The surface area of the ball is 12.56 square feet.

Explanation:

Given : A ball has a radius of 1 foot.

To find : What is the surface area of the ball?

Solution : Ball is consider as a sphere,

So, The surface area of a sphere is
`S=4\pi r^(2)`

We have given that radius r = 1 foot

Now, The surface area of the ball is

`S=4\pi r^(2)`

`S=4(3.14) 1^(2)`

`S=4(3.14)(1)`

`S=12.56 ft^2`

Therefore, The surface area of the ball is 12.56 square feet.

Answer 2

We know, ball is a Sphere.

Surface area of sphere = 4πr²
A = 4 * 3.14 * (1)²
A = 12.56 Ft²

In short, Your Answer would be 12.56 Ft²

Hope this helps!