Question
The radius of a circle is 7.2 m. Find the circumference to the nearest tenth.
Answers
GPT-4o mini
To find the circumference \( C \) of a circle, you can use the formula:
\[
C = 2\pi r
\]
where \( r \) is the radius of the circle. Given that the radius \( r = 7.2 \) m, you can substitute this value into the formula:
\[
C = 2\pi(7.2)
\]
Calculating this gives:
\[
C \approx 2 \times 3.14159 \times 7.2 \approx 45.238 m
\]
Rounding to the nearest tenth, the circumference is:
\[
C \approx 45.2 \text{ m}
\]
So, the circumference of the circle is approximately **45.2 m**.
\[
C = 2\pi r
\]
where \( r \) is the radius of the circle. Given that the radius \( r = 7.2 \) m, you can substitute this value into the formula:
\[
C = 2\pi(7.2)
\]
Calculating this gives:
\[
C \approx 2 \times 3.14159 \times 7.2 \approx 45.238 m
\]
Rounding to the nearest tenth, the circumference is:
\[
C \approx 45.2 \text{ m}
\]
So, the circumference of the circle is approximately **45.2 m**.