Question

The radius of a circle is 16 kilometers. What is the circle's circumference?
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.

Given that the radius \( r \) is 16 kilometers, we can substitute this value into the formula along with \( \pi \approx 3.14 \):

\[
C = 2 \times 3.14 \times 16
\]

Now, calculate the value:

\[
C = 2 \times 3.14 = 6.28
\]
\[
C = 6.28 \times 16 = 100.48
\]

Therefore, the circumference of the circle is approximately **100.48 kilometers**, rounded to the nearest hundredth.

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