Question

question 9 of 10 what is the approximate circumference of the circle shown below? 20.5 cm a. 129 cm b. 82 cm c. 137 cm d. 64 cm

Explanation:

Step1: Recall circumference formula

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

Step2: Identify radius value

The radius $r = 20.5$ cm.

Step3: Calculate circumference

$C=2\times\pi\times20.5\approx2\times3.14\times20.5 = 128.74\approx129$ cm.

Answer:

A. 129 cm