Question

what is the exact circumference of a circle with a radius of 17 mm?
8.5π mm
17π mm
34π mm
68π mm

Explanation:

Step1: Recall circumference formula

The formula for the circumference of a circle is $C = 2\pi r$, where $r$ is the radius.

Step2: Substitute radius value

Substitute $r = 17$ mm into the formula:
$C = 2\pi \times 17$

Step3: Calculate the product

$C = 34\pi$

Answer:

C. $34\pi$ mm