What is the arc length when θ = 3 pi over 5 and the radius is 7 cm? (5 points) 3 pi over 35 cm 12 pi over 5 cm 6 pi over 5 cm 21 pi over 5 cm

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What is the arc length when θ = 3 pi over 5 and the radius is 7 cm? (5 points) 3 pi over 35 cm 12 pi over 5 cm 6 pi over 5 cm 21 pi over 5 cm

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The correct answer is 21π / 5

Explanation:
The length of the arc of a circle is given by = radius × angle extended by the arc at its center.
Seo, r = 7 cm.
θ = 3π / 5
Thus, arc length, l = rθ = 7 × 3π / 5 = 21π / 5