What is the area of a circle with a diameter of 8 inches?

(1 point)
Responses

25 sq. in
25 sq. in

50 sq. in
50 sq. in

158 sq. in
158 sq. in

13 sq. in

1 answer

To find the area of a circle, you can use the formula:

\[ \text{Area} = \pi r^2 \]

where \( r \) is the radius of the circle. The radius is half of the diameter.

Given that the diameter of the circle is 8 inches, the radius \( r \) would be:

\[ r = \frac{8}{2} = 4 \text{ inches} \]

Now, substituting the radius into the area formula:

\[ \text{Area} = \pi (4^2) = \pi (16) = 16\pi \]

Using an approximation of \( \pi \approx 3.14 \):

\[ \text{Area} \approx 16 \times 3.14 \approx 50.24 \text{ sq. in} \]

Thus, the area of the circle is approximately 50 square inches.

The correct answer from your responses is:

50 sq. in.