Question

What is the area of a circle whose radius is 20 meters?

Answer 1

This should be helpful: http://www.ask.com/answers/6673191/what-is-the-area-of-a-circle-that-has-a-radius-of-20-meters

Answer 2

what is the formula for a circle's area?

Answer 3

a 20pi m^2
b 40pi m^2
c 200pi m^2
d 400pim^2

Answer 4

@jjuden in order to solve this you need to know the formula for a circle's area:\[A=\pi r^2\]What do you get when you plug in 20 for r?

Answer 5

yes @BTaylor i already tried i did not get the answer

Answer 6

If I were to rewrite it as \[A = r \times r \times \pi\] would it make more sense?

Answer 7

i know how to do all that but im not getting what i need

Answer 8

this is what i get 1256.64 square meters

Answer 9

I don't really understand, it should be 1256. but your options are diffrent..

Answer 10

You are going too far and evaluating. Each of your answers has something times pi, right?

Answer 11

ikr @Light&Happiness

Answer 12

What times pi = 1256.64?

Answer 13

ok but where the heck does the m come from is what i wanna know

Answer 14

m is for meters. It is the unit they give in the problem.

Answer 15

ima just put d its the closest

Answer 16

D is correct :o

Answer 17

hey i got it right :D

Answer 18

20 x 20 x pi = 400pi.

Answer 19

it was D

Answer 20

because 3.14 * 400 is 1256

Answer 21

i got the D lol