Question

The circumference of a circle is 30 inches. What is the radius?

Answer 1

Use the circumference equation:
\[C = 2\pi r\]
where C = 30inches

Answer 2

@PhysicsGuru So it'll be like \[30=2\pi r\]

Answer 3

And after that I'll need to divide each side by 2pi right? @PhysicsGuru

Answer 4

correct

Answer 5

So will the final answer be 47.12?

Answer 6

no that answer is too large make sure you type pi into the calculator

Answer 7

So then how will I type it in?

Answer 8

\[\frac{30}{2\pi} = r\]

Answer 9

I keep getting the same thing

Answer 10

Oh wait! Is it 4.77?

Answer 11

yes

Answer 12

thanks:)