Question

the radius of a circle is 4 ft. find its circumference in terms of π.

Explanation:

Step1: Recall the formula for circumference

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

Step2: Substitute the given radius

Given \(r = 4\) ft. Substitute \(r = 4\) into the formula: \(C=2\pi\times4\).

Step3: Simplify the expression

\(C = 8\pi\)

Answer:

\(8\pi\) ft