Question

7. Find the circumference of a circle whose diameter is 3.2 meters. Round to the nearest tenth.

A. 32.2 m

B. 8.0 m

C. 10.0 m

D. 5.0 m

Answer 1

The correct answer is C.10.0m

Answer 2

C. 10.0 m

Explanation:

`C=2\pi r`

radius is half of diameter

`r = (d)/(2) \\r=(3.2)/(2) \\`

`C= 2 (3.14) (3.2)/(2)`

`C= (3.14)3.2\\C=10`