Question

Find the value of the circumference of a circle with the given diameter.
3.21 ft.
C=

a. 1.6 pi
b. 3.21 pi
c. 6.42 pi

Answer 1

You use this formula

Circumference = pi*diameter

C = pi*d

Answer 2

C= pi * 3.21
C= 3.14 * 3.21
C= 10.07

Answer 3

Am I right?

Answer 4

circumference is not measured in radians.

why are the possible answers measured in radians.

@jim_thompson5910 right

Answer 5

Circumference = diameter x 3.14

Answer 6

leave it in terms of pi, so it's just 3.21pi

Answer 7

I did that Ryan

Answer 8

the answer you got is an approximate answer, 3.21pi is an exact answer

Answer 9

are a, b, and c possible measure for pi or possible circumferences

Answer 10

possible circumferences

Answer 11

wouldn't that be measured in ft?

Answer 12

Yes

Answer 13

yeah it doesn't say, but I'm assuming they're implying 1.6 pi ft, 3.21 pi ft, etc...

Answer 14

ok

Answer 15

I'm sorry it's not feet it doesn't say way it is all it says are the numbers.

Answer 16

What*

Answer 17

3.21pi

Answer 18

Are you sure?

Answer 19

lol.. trust me

Answer 20

thats 7th grade stuff

Answer 21

yes it's 3.21pi

Answer 22

How do I choose best answer when I'm on a iphone ? LOLOLOL

Answer 23

then you call me and ask me :p

Answer 24

Well, they're teaching it in 10th now lol

Answer 25

yes they are

Answer 26

Lol thank you (: ill choose best answer when I get on my computer (:

Answer 27

haha, ok thank you so much :D