Question

the radius of a circle is 13 centimeters. what is the circles circumference? round your answer to the nearest hundredth.

Explanation:

Step1: Recall the formula

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

Step2: Substitute the radius value

Given $r = 13$ cm, we substitute into the formula: $C=2\pi\times13$.

Step3: Calculate the value

$C = 26\pi\approx 26\times3.14159 = 81.68134$.

Step4: Round the result

Rounding $81.68134$ to the nearest hundred - th gives $81.68$.

Answer:

$81.68$ cm