Answer:
[tex]Area = 314\ in^2[/tex]
Step-by-step explanation:
Given
[tex]D = 20\ in[/tex] -- Diameter
Required
Determine the area
First, we calculate the radius (r)
[tex]r = \frac{1}{2}D[/tex]
[tex]r = \frac{1}{2}*20[/tex]
[tex]r = 10[/tex]
The area is then calculated as:
[tex]Area = \pi r^2[/tex]
[tex]Area = 3.14 *10^2[/tex]
[tex]Area = 3.14 *100[/tex]
[tex]Area = 314\ in^2[/tex]