Question

2 ft
c= 12.56
a= 12.56
4)
8 ft
c=
a=

Explanation:

Step1: Find the radius

The diameter \(d = 8\) ft. The radius \(r=\frac{d}{2}\), so \(r = \frac{8}{2}=4\) ft.

Step2: Calculate the circumference

The formula for the circumference of a circle is \(C = 2\pi r\) or \(C=\pi d\). Using \(C=\pi d\) (\(d = 8\) ft and \(\pi\approx3.14\)), we have \(C=3.14\times8 = 25.12\) ft.

Step3: Calculate the area

The formula for the area of a circle is \(A=\pi r^{2}\). Substituting \(r = 4\) ft and \(\pi\approx3.14\), we get \(A=3.14\times4^{2}=3.14\times16 = 50.24\) \(ft^{2}\).

Answer:

\(C = 25.12\) ft, \(A = 50.24\) \(ft^{2}\)