Question

Fan and Medal
A circle has a diameter of 30 yards. What is its area? Use 3.14 for pi

A. 188.4 square yard

B. 353.25 square yards

C. 376.8 square yards

D. 706.5 square yards

Answer 1

http://www.wikihow.com/Sample/Area-of-a-Circle-Diagram

Answer 2

Do you know how to find the radius?

Answer 3

it dosnt say the radius

Answer 4

I know, that's the point. I asked if you know how to find it

Answer 5

nope not really

Answer 6

The radius is always half of the diameter.
So what's half of the diameter?

Answer 7

15 yards

Answer 8

@whalexnuker

Answer 9

Great :) Now pi is 3.14, R=Radius and "^2" means squared. okay?

The formula for area of a square is: A = pi * r^2

Answer 10

ok then what

Answer 11

Plug it in......

Answer 12

wat?

Answer 13

Do you know what plugging it in means? Take your information and plug it into the formula.
pi = 3.14
r = 15

Answer 14

i dont know what im doing

Answer 15

I just told you, twice.
You have: A = pi * r^2 which translates to: area equals pi times R squared
I told you what pi is and i told you what R is. Put it into your calculator and solve it.

Answer 16

just give me the answer pls i need the answer to pass the class

Answer 17

@whalexnuker

Answer 18

No, I'm not giving you the answer. You need to know how to do this. I've told you three times, it's not that hard. Figure out what 3.14*15^2 equals

Answer 19

23.55

Answer 20

@whalexnuker

Answer 21

Um... no. How did you get that?
\[3.14\times15^{2}\]

Answer 22

oooooooooooooh now i get it its 706.5

Answer 23

@whalexnuker

Answer 24

thanks i was looking at it the wrong way

Answer 25

Yep....