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19 votes
19 votes
The radius of a circle measures 3 ft. What is the circumference of the circle?

Use 3.14 for 11, and do not round your answer. Be sure to include the correct unit in your answer.

The radius of a circle measures 3 ft. What is the circumference of the circle? Use-example-1
User Jbochi
by
2.6k points

2 Answers

16 votes
16 votes

Answer:

18.85

Explanation:

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User Marcerickson
by
2.7k points
17 votes
17 votes

The circumference of the circle is approximately
\(18.85 \, \text{ft}\).

The circumference
(\(C\)) of a circle is given by the formula:


\[ C = 2 \pi r \]

where:

-
\(C\) is the circumference,

-
\(\pi\) is a constant (approximately 3.14159),

-
\(r\) is the radius of the circle.

Given that the radius
(\(r\)) of the circle measures 3 ft, you can use the formula to find the circumference:


\[ C = 2 \pi * 3 \, \text{ft} \]


\[ C \approx 6 \pi \, \text{ft} \]

If you want a numerical approximation, you can substitute the value of
\(\pi\) (approximately 3.14159) into the equation:


\[ C \approx 6 * 3.14159 \, \text{ft} \]


\[ C \approx 18.84954 \, \text{ft} \]

User Stefan Wallin
by
2.9k points
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