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Question
What is the approximate circumference of a circle that has a radius of 90? Use 3.14 for π
and express your answer to the tenths place.(1 point)
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What is the approximate circumference of a circle that has a radius of 90? Use 3.14 for π
and express your answer to the tenths place.(1 point)
Skip to navigation
Answers
GPT-4o mini
To find the circumference of a circle, you can use the formula:
\[
C = 2\pi r
\]
where \(C\) is the circumference, \(\pi\) is approximately 3.14, and \(r\) is the radius.
Given that the radius \(r\) is 90, we can substitute that value into the formula:
\[
C = 2 \times 3.14 \times 90
\]
Now, calculate it step by step:
1. Calculate \(2 \times 3.14\):
\[
2 \times 3.14 = 6.28
\]
2. Now multiply that by 90:
\[
6.28 \times 90 = 565.2
\]
Therefore, the approximate circumference of the circle is **565.2**.
\[
C = 2\pi r
\]
where \(C\) is the circumference, \(\pi\) is approximately 3.14, and \(r\) is the radius.
Given that the radius \(r\) is 90, we can substitute that value into the formula:
\[
C = 2 \times 3.14 \times 90
\]
Now, calculate it step by step:
1. Calculate \(2 \times 3.14\):
\[
2 \times 3.14 = 6.28
\]
2. Now multiply that by 90:
\[
6.28 \times 90 = 565.2
\]
Therefore, the approximate circumference of the circle is **565.2**.