1 Answer

Kassens · Answer 1 · 2023-05-16T08:00:35+0000

The area of a circle of radius r is given by the formula:

$A=\pi\cdot r^2$

On the other hand, the radius r is half the diameter D of the circle:

Substitute D=10.5 in to find the radius:

$\begin{gathered} r=\frac{10.5\text{ in}}{2} \\ \therefore r=5.25\text{ in} \end{gathered}$

Use the value r=5.25 in to find the area of the circle:

$A=\pi\cdot(5.25in)^2$

Use a calculator to find the numerical value of the expression. We get that:

$A\approx86.59in^2$

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