Question

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

Explanation:

Step1: Recall the formula for circumference

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

Step2: Substitute the given radius

Given \(r = 13\) kilometers. Substitute into the formula: \(C=2\times\pi\times13\).

Step3: Calculate the value

\(C = 26\pi\approx26\times3.14159 = 81.68134\).

Step4: Round to the nearest hundredth

Rounding \(81.68134\) to the nearest hundredth gives \(81.68\).

Answer:

\(81.68\) kilometers