Question
The radius of a circle is 9 feet. What is the circle's circumference
Answers
Answered by
GPT-4o mini
To find the circumference of a circle, you can use the formula:
\[
C = 2\pi r
\]
where \( C \) is the circumference and \( r \) is the radius of the circle.
Given that the radius \( r = 9 \) feet, you can substitute this value into the formula:
\[
C = 2\pi(9) = 18\pi
\]
To get a numerical approximation, you can use \( \pi \approx 3.14 \):
\[
C \approx 18 \times 3.14 \approx 56.52 \text{ feet}
\]
Thus, the circumference of the circle is \( 18\pi \) feet, which is approximately \( 56.52 \) feet.
\[
C = 2\pi r
\]
where \( C \) is the circumference and \( r \) is the radius of the circle.
Given that the radius \( r = 9 \) feet, you can substitute this value into the formula:
\[
C = 2\pi(9) = 18\pi
\]
To get a numerical approximation, you can use \( \pi \approx 3.14 \):
\[
C \approx 18 \times 3.14 \approx 56.52 \text{ feet}
\]
Thus, the circumference of the circle is \( 18\pi \) feet, which is approximately \( 56.52 \) feet.
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