Question

what is the circumference of a circle with a radius of 4 feet?
c = ? ft.
(use 3.14 for π)
circumference formula
c = 2πr

Explanation:

Step1: Recall the circumference formula

The formula for the circumference \( C \) of a circle is \( C = 2\pi r \), where \( r \) is the radius and we use \( \pi \approx 3.14 \).

Step2: Substitute the given radius

Given \( r = 4 \) feet, substitute into the formula: \( C = 2\times3.14\times4 \).

Step3: Calculate the result

First, calculate \( 2\times3.14 = 6.28 \), then \( 6.28\times4 = 25.12 \).

Answer:

\( 25.12 \)