Question

the diameter of a circle is 4 centimeters. what is the circles circumference? round your answer to the nearest hundredth.

Explanation:

Step1: Recall the formula for circumference

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

Step2: Substitute the given diameter

Given $d = 4$ cm, we substitute into the formula: $C=\pi\times4$.

Step3: Calculate the value

$C = 4\pi\approx4\times3.14159 = 12.56636$ cm.

Step4: Round to the nearest hundredth

Rounding $12.56636$ to the nearest hundredth gives $12.57$ cm.

Answer:

$12.57$ cm