Question

a circle has a diameter of 18 ft. what is its circumference? use 3.14 for π, and do not round your answer. be sure to include the correct unit in your answer.

Explanation:

Step1: Recall circumference formula

$C = \pi d$ (where $C$ is circumference and $d$ is diameter)

Step2: Substitute values

$C=3.14\times18$
$C = 56.52$

Answer:

$56.52$ ft