Question

Please help

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Answer 1

30
`\pi`

Explanation:

So there is one thing we need to remember to solve thi:

circumfernce = 2
`\pi`r.

We know r(radius) is 15.

Lets plug that in:

2
`\pi`15

Multiply the 2 and 15 together:

30
`\pi`

So, depending on your math teacher, or math question, you might be required to write this in a different form.

So in your case, it seems the answers are written in terms of
`\pi`, however sometimes you need to multiply your number by

30
`\pi`

Or

94.248

Looking at your answers, it seems 30
`\pi` is the third answer down.

Hope this helps! :D

Answer 2

answer is 30π cm

Explanation:

use formula=2πr

=2*π*r

=2*π*15

=30π