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If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?

If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?
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If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?

User Kurtis
by
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2 Answers

4 votes

Answer:

9/2

Explanation:

User Kevin Lacquement
by
7.8k points
3 votes
circumference of the entire circle = 2 * PI * radius
circumference = 2 * PI * radius
circumference = 62.832
81 degrees is (81 / 360) or .225 of the entire circumference
so the 81 degree arc = .225 * 62.832 = 14.137 feet


User Pedrog
by
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User Rob Eroh
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If the radius of a circle is 10 feet, how long is the arc subtended by an angle measuring 81°?
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