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Trigonometry

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Angles and Length: Arc Length Given $r$ and $\theta$

TRIG-KKEI4J

If $s$ denotes the length of an arc of a circle of radius $r$ subtended by a central angle $\theta$ , find the missing quantity
$$s=\text{ ?}$$
$$ r=9\text{ ft}$$
$$ \theta =\cfrac { \pi }{ 3 }$$
Round your answer to four decimal places.

A

$6.2832\text{ feet}$

B

$9.4248\text{ feet}$

C

$9.4248\text{ inches}$

D

$12.5664\text{ inches}$