tonirey13 tonirey13

06-12-2017
Mathematics

contestada

find the measure of the angle of the radius of the circle is 4 inches and the length of the arc is 8 pi.

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jdoe0001 jdoe0001

06-12-2017

since the angle is in radians, then s = rθ.

[tex]\bf \textit{arc's length}\\\\ s=r\theta \quad \begin{cases} r=4\\ s=8\pi \end{cases}\implies 8\pi =4\theta \implies \cfrac{8\pi }{4}=\theta \implies 2\pi =\theta [/tex]

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