Asked by Tim

Hello, could someone please go over the steps for this question? Thank you!

1. Find the circumference. Leave your answer in terms of pi.
The middle line going through the circle is 8.4
(I'm so sorry I don't know the name of the line, brain fart).

A) 12.6 pi cm
B) 4.2 pi cm
C) 16.8 pi cm
D) 8.4 pi cm
Answered by Ms. Sue
The line going through the middle of the circle is the diameter.

C = pi * d

Answered by Tim
How would I turn that into terms of pi though? Because I got 43.96 by using your formula.
Answered by Ms. Sue
Look at your answer choices. All of them use pi, not the numerical valuation of pi.

Answered by Tim
Wait... would it be B then since it is the closest?
Answered by Tim
I'm confused, because the circumference is 8.4 pi. But how did we get that?
Answered by Tim
So I used the actual formula which is c=pi(d) and got 26.376 but that isn't an answer choice and isn't the correct answer.
Answered by Ms. Sue
8.4 pi = pi * 8.4

Answered by Wolfcat
Thx!!!!!!!!!!! i'm still convinced your a teacher tho -_-...
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