Find the radius r of the circle if an arc of length 6 m on the circle subtends a central angle of 3π/5 rad. (Round your answer to two decimal places.)
Arc length = r θ
6 = r ( 3pi/5)
6 (5 / (3pi) ) = r = 10/pi ≈ 3.18 m
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\(b=r\cdot \theta\\ r=\frac{b}{\theta}=\frac{6m}{\frac{3\pi }{5}}=\frac{5\cdot 6m}{3\pi}\)
\(r=3.18\ m\)
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