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marissa [1.9K]
3 years ago
14

An arc of a circle is 3πm long, and it subtends an angle of 72° at the center of the circle. Find the radius of the circle.

Mathematics
1 answer:
Alex777 [14]3 years ago
8 0
72⁰_______3π m
360⁰______15π m

C = 15π = 2π r
r = 7•5 m
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We are using substitution to solve this problem.

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