Question

find the circumference of ⊙c. the circumference is □ cm. (type an exact answer in terms of π.)

Explanation:

Step1: Recall circumference formula

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

Step2: Identify diameter

From the image, the diameter $d$ of circle $C$ is $5$ cm.

Step3: Calculate circumference

Using $C = \pi d$, substitute $d = 5$ cm. So $C=5\pi$ cm.

Answer:

$5\pi$ cm