Question

find the area of a circle with radius 7 ft.
use the value 3.14 for π, and do not round your answer.
be sure to include the correct unit in your answer.

Explanation:

Step1: Recall the formula for the area of a circle

The formula for the area of a circle is \(A=\pi r^{2}\), where \(r\) is the radius of the circle.

Step2: Substitute the given radius into the formula

Given \(r = 7\) ft and using \(\pi=3.14\), we substitute into the formula: \(A = 3.14\times7^{2}\).
First, calculate \(7^{2}=49\). Then, \(A=3.14\times49\).

Step3: Perform the multiplication

\(3.14\times49=(3 + 0.14)\times49=3\times49+0.14\times49=147+6.86 = 153.86\)

Answer:

\(153.86\)