Question

Jacob made a circle-shaped poster for his geometry class.

The radius of the circle-shaped poster is 12 inches. What is the approximate circumference? (Use 3.14 for .)
A.
37.68 in
B.
75.36 in
C.
150.72 in
D.
452.16 in

Answer 1

The answer is B. (75.36 in)

Explanation:

The formula for the circumference of a circle is C =
`2\pi r\\`

1. All we need to do is plug in the numbers!
2. Pi = 3.14
3. r (radius) = 12
4. So... C = 2 * 3.14 * 12
5. Put that into your calculator, and you'd get 75.36, therefore, B is your answer