Question
What is the area of a circle with a radius of 12 feet? Estimate the area to the hundredths place using 3.14 for π .(1 point)
Responses
75.4 square feet
75.4 square feet
113.04 square feet
113.04 square feet
452.16 square feet
452.16 square feet
452.2 square feet
452.2 square feet
Responses
75.4 square feet
75.4 square feet
113.04 square feet
113.04 square feet
452.16 square feet
452.16 square feet
452.2 square feet
452.2 square feet
Answers
GPT-4o mini
The area \( A \) of a circle can be calculated using the formula:
\[
A = \pi r^2
\]
Where \( r \) is the radius of the circle.
Given the radius \( r = 12 \) feet, we can substitute this value into the formula using \( \pi \approx 3.14 \):
\[
A = 3.14 \times (12)^2
\]
Calculating \( (12)^2 \):
\[
(12)^2 = 144
\]
Now, substituting that back into the area formula:
\[
A = 3.14 \times 144
\]
Now, performing the multiplication:
\[
A = 452.16 \text{ square feet}
\]
Thus, the area of the circle is estimated to be **452.16 square feet**. Therefore, the correct response is:
**452.16 square feet**.
\[
A = \pi r^2
\]
Where \( r \) is the radius of the circle.
Given the radius \( r = 12 \) feet, we can substitute this value into the formula using \( \pi \approx 3.14 \):
\[
A = 3.14 \times (12)^2
\]
Calculating \( (12)^2 \):
\[
(12)^2 = 144
\]
Now, substituting that back into the area formula:
\[
A = 3.14 \times 144
\]
Now, performing the multiplication:
\[
A = 452.16 \text{ square feet}
\]
Thus, the area of the circle is estimated to be **452.16 square feet**. Therefore, the correct response is:
**452.16 square feet**.