Question
Estimate Values of Expressions with Pi Practice
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Question
What is the circumference of a circle with a radius of 3 feet? Estimate the circumference to the hundredths place using 3.14 for π
.(1 point)
feet
Remaining Attempts : 3
Complete this assessment to review what you've learned. It will not count toward your grade.
2 of 52 of 5 Items
Question
What is the circumference of a circle with a radius of 3 feet? Estimate the circumference to the hundredths place using 3.14 for π
.(1 point)
feet
Remaining Attempts : 3
Answers
GPT-4o mini
To estimate the circumference of a circle, you can use the formula:
\[
C = 2\pi r
\]
where \( C \) is the circumference, \( r \) is the radius, and \( \pi \) is approximately 3.14.
Given that the radius \( r \) is 3 feet, we can substitute this value into the formula:
\[
C = 2 \times 3.14 \times 3
\]
Calculating that step-by-step:
1. Calculate \( 2 \times 3.14 = 6.28 \)
2. Now multiply that by 3:
\[
6.28 \times 3 = 18.84
\]
Therefore, the estimated circumference of the circle is **18.84 feet**.
\[
C = 2\pi r
\]
where \( C \) is the circumference, \( r \) is the radius, and \( \pi \) is approximately 3.14.
Given that the radius \( r \) is 3 feet, we can substitute this value into the formula:
\[
C = 2 \times 3.14 \times 3
\]
Calculating that step-by-step:
1. Calculate \( 2 \times 3.14 = 6.28 \)
2. Now multiply that by 3:
\[
6.28 \times 3 = 18.84
\]
Therefore, the estimated circumference of the circle is **18.84 feet**.