Question

Can someone help I will mark u brilliant

Answer 1

First, we must know the formula for the area of a circle.

The formula for the area of a circle is;

A = π
`r^(2)`

Where 'π' is pi(22/7 or 3.14), and 'r' is the radius which is being squared.

• Plug in what you know;

R(radius) = 4 feet.

So,

A = π
`r^(2)`

Will be;

A = π(4^2) ← what I mean by " ^ ", I mean "to the power of".

Simplify:-

A = 3.14(16)

A = 50.24 feet is the area.

Answer 2

50

Explanation:

We are finding the surface area of a circle here. which is pie r ^2 ( the formula) so the radius is 4. So we do pie 4^2 which equals 50.26548246 which is approximately 50.