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A central angle Theta of a circle with a radius of 16 inches intercepts an arc of 19.36 inches, find theta

Verified Answer :

the length of the arc =R × theta
theta =the length of the arc /R
theta =16/19.36
that's what i know

Length of arc = radius x Theta. Theta = length of arc/radius = 19.36/16 = 1.21 rad.

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