Question

What is the approximate circumference of a circle with a radius of 30 inches? Use π ≈ 3.14.

A.
62.8 inches

B.
188.4 inches

C.
94.2 inches

D.
47.1 inches

Answer 1

@chosenmatt

Answer 2

@AnswerMyQuestions

Answer 3

use th formula
\(\large \color{black}{\begin{align} \normalsize \text{circumference=}2\pi r\hspace{.33em}\\~\\
\hspace{.33em}\\~\\
\end{align}}\)

Answer 4

2826

Answer 5

How did you get that?

Answer 6

@pielover123 Multiply 30 x 2 first.

Answer 7

oh ok 60

Answer 8

Then multiply that to pi, which is about 3.14.

Answer 9

yes 60 X 3.14

Answer 10

@myth1111 i did 30^2*3.14

Answer 11

188.4

Answer 12

Oh, it isn't 30^2, it was 30 x 2. lol.

Answer 13

Yes, 188.4 is your answer.

Answer 14

Thanks

Answer 15

All the best