Answer: 15.02π ft.²
Explanation:
The area of a circle can be found with this equation;
A = πr²
Next, we will find the radius. The diameter is twice the radius, 2r = d;
2r = d
2r = 7.75
r = 3.875
Now, we can substitute this value of r into our equation. Then, we will square and solve;
A = πr²
A = π(3.875)²
A ≈ 15.02π ft.²