A circle with circumference 20 has an arc with a 72 degrees central angle. What is the length of the arc?

asked Jun 22, 2021 33.2k views

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4 votes

Explanation:

Length of arc

$= ( \theta)/(360 \degree) * c \\ \\ = (72 \degree)/(360 \degree) * 20\\ \\ = (1)/(5) * 20 \\ \\ = 4 \: units \\$

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