3 years ago

A circle has a radius of 12ft . find the length s of the arc intercepted by a central angle of 9° .

1 answer:

4 0

Plug in the values into the base equation;

$l=2 \pi r( \frac{ \alpha }{360} )$ <-- alpha is the degree

l=2 \pi (12)(9/360)
l=1.88495 ft ≈ 1.90 ft

Hope I helped :)

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