vfelixamarillas29 vfelixamarillas29

09-04-2021
Mathematics

contestada

Find the arc length when the angle is
[tex] \frac{7\pi}{4} [/tex]
and radius is 9 ft. Round your answer to the nearest tenth.

Respuesta :

azygadlo azygadlo

09-04-2021

49.5ft

Step-by-step explanation:

the entire perimeter is 2*pi*R for the angle 2*pi = 8pi/4

7pi/4 is 7/8 of the entire perimeter. R = 9 ft

the arc length is 7/8 * 2pi*R = 7pi/4 * R = 49.5 ft

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