(5 points) A circular sector has radius r = 3.9 and central angle ? = 140°. Determine: Arclength = Area = Note: You can earn partial credit on this problem.
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9\) and \(\theta = 140^\circ\), convert the angle to radians: \(\theta = 140^\circ \times \frac{\pi}{180} = \frac{7\pi}{9}\) radians. Now, calculate the arc length: \(s = 3.9 \times \frac{7\pi}{9} = \frac{27.3\pi}{9} = 3.03\pi \approx 9.53\). Show more…
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