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

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asked Jul 23, 2021 59.2k views

4 votes

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

Mathematics
college

Dean Whitehouse asked

by Dean Whitehouse

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1 Answer

4 votes

Answer:

4 units

Explanation:

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

Jimmbraddock answered Jul 28, 2021

by Jimmbraddock

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