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An angle of 1.5 rad intercepts an are on the unit circle. What is the length of the intercepted arc?

User Synthead
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The arc length is related to the angle and length of the radius of the circle via the equation


S=r\theta

This is a unit circle, hence, r = 1. The angle is given as 1.5 radians or can be written as 1.5π. Hence, the length of the intercepted arc is computed as


\begin{gathered} S=(1)(1.5\pi) \\ S=1.5\pi \end{gathered}

User Yago Riveiro
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