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A circle with circumference 20 has an arc at 72 central angle. what is the length of the arc

A circle with circumference 20 has an arc at 72 central angle. what is the length of the arc
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4 votes
A circle with circumference 20 has an arc at 72 central angle. what is the length of the arc

User Dean Whitehouse
by
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1 Answer

4 votes

Answer:

4 units

Explanation:


\because \: l = ( \theta)/(360 \degree) * c \\ \\ \therefore \: l = (72 \degree)/(360 \degree) * 20 \\ \\ \therefore \: l = (72 \degree)/(18\degree) \\ \\ \therefore \: l = 4 \: units

User Jimmbraddock
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