Question

PLEASE HELP

A circle has radius 50 cm. Which of these is closest to its area?
Captionless Image
1. A
2. B
3. C
4. D

Answer 1

Area = pie x radius squared
50 squared = 2500
2500 x pie = 7853.9
Therefore the answer is c

Answer 2

C.)
`7,854`
`cm^2`

Explanation:

use the area of a circle formula:

`A=\pi r^2`

Insert the radius:

`A=\pi *50^2`

Simplify exponents:

`A=\pi *2500`

Simplify pi:

`A=3.14*2500\\A=7850`

Option C is the closest to 7850.

Finito.