Question

A circle has a radius of 10 yards. What is the circumference of the circle? (Express your answer using π.)

A. 5π yards
B. 10π yards
C. 20π yards
D. 30π

Answer 1

ok, do you know you're formulas for circumference?

Answer 2

\[C=2\pi r\]

Answer 3

um is it 3.14* diameter?

Answer 4

yes pi*d is one of them 2*pi*r is the other

Answer 5

I keep getting 62.83

Answer 6

1 sec, let me get a piece of paper

Answer 7

Because you have to express your answer in pi, just do

2*10=20, and 20*pi=62.83

So the answer is 20 pi

Answer 8

well yea thats correct :P

Answer 9

ohh thats how you do it

Answer 10

nvm its not

Answer 11

They tell you to leave the answer in terms of pi.
Don't multiply by 3.14.
Just write the answer as the diameter (20) time pi.
\(C = 20 \pi\)

Answer 12

oh yes it is,

Answer 13

can you guys like give each other medals since i can give only one person thanks!

Answer 14

pfffft

Answer 15

I gave one to mathstudent

Answer 16

ok thanks orangemaste and jacob for the medal

Answer 17

good luck study bird

Answer 18

i gave one to orangemaster

Answer 19

thanks mathstudent

Answer 20

You're welcome.