Question
The radius of a circle is 18 millimeters. What is the circle's circumference?
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
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 \( r \) is 18 millimeters and using \( \pi \approx 3.14 \), we can calculate the circumference as follows:
\[
C = 2 \times 3.14 \times 18
\]
Calculating this step-by-step:
1. Calculate \( 2 \times 3.14 \):
\[
2 \times 3.14 = 6.28
\]
2. Now multiply by the radius (18):
\[
6.28 \times 18 = 113.04
\]
Therefore, the circumference of the circle is approximately \( 113.04 \) millimeters.
\[
C = 2\pi r
\]
where \( C \) is the circumference and \( r \) is the radius of the circle. Given that the radius \( r \) is 18 millimeters and using \( \pi \approx 3.14 \), we can calculate the circumference as follows:
\[
C = 2 \times 3.14 \times 18
\]
Calculating this step-by-step:
1. Calculate \( 2 \times 3.14 \):
\[
2 \times 3.14 = 6.28
\]
2. Now multiply by the radius (18):
\[
6.28 \times 18 = 113.04
\]
Therefore, the circumference of the circle is approximately \( 113.04 \) millimeters.