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Trigonometry

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Finding Arc Length of a Circle

TRIG-7KE0LG

Find the arc length of the arc of circle with a $50$ degree central angle for a circle of radius $9$ in. Leave your answer in terms of ${\pi}$.

A

$\cfrac {45}{4} {\pi}$ in

B

$18 {\pi}$ in

C

$\cfrac {5}{4} {\pi}$ in

D

$\cfrac {5}{2} {\pi}$ in

E

$5{\pi}$ in