Question

If the diameter of a circle is 6 Inches, what is the area?

Answer 1

if the diameter is 6 units, then the radius is half that, or 3.

`\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} r=3 \end{cases}\implies A=\pi 3^2\implies A=9\pi \implies A\approx 28.27`

Answer 2

For this case we have that by definition, the area of a circle is given by:

`A = \pi * r ^ 2`

Where:

r: It is the radius of the circle

If they tell us that the diameter is 6 inches, then the radius is 3 inches. replacing:

`A = \pi * (3) ^ 2\\A = 9 \pi\\A = 28.26`

Thus, the area of the circle is 28.26 \ in ^ 2

ANswer:

`28.26 \ in ^ 2`