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swat32
3 years ago
13

What is the arc length when θ = 3 pi over 5 and the radius is 7 cm? (5 points)

Mathematics
1 answer:
erastova [34]3 years ago
4 0
The correct answer is 21π/5

Explanation:
The arc length of a circle is given as = radius × angle subtended by the arc at centre.
Here, r = 7 cm.
θ = 3π/5
Therefore, arc length, l = rθ = 7×3π/5 = 21π/5
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