An arc of a circle subtends an angle 70° at the centr...
An arc of a circle subtends an angle 70° at the centre. If the radius of the circle is 6cm, calculate the area of the sector subtended by the given angle.(π = 227)
22cm2
44cm2
66cm2
88cm2
Correct answer is A
Area of a sector = \frac{\theta}{360°} \times \pi r^{2}
r = 6cm; \theta = 70°.
Area of the sector = \frac{70}{360} \times \frac{22}{7} \times 6^{2}
= 22 cm^{2}
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