A circular arc subtends angle 150° at the centre ...
A circular arc subtends angle 150° at the centre of a circle of radius 12cm. Calculate the area of the sector of the arc.
30\(\pi\) cm\(^2\)
60\(\pi\) cm\(^2\)
120\(\pi\) cm\(^2\)
150\(\pi\) cm\(^2\)
Correct answer is B
Area of sector = \(\frac{\theta}{360°} \times \pi r^{2}\)
= \(\frac{150}{360} \times \pi \times 12^{2}\)
= 60\(\pi\) cm\(^{2}\)
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