The measure of the central angle of a sector of a circle of radius 30 cm, is 210°. What is the area (in cm2) of the given sector? (Take $π =\frac{22}{7}$)
Answer & explanation
Correct answer: option 1
The measure of the central angle of a sector of a circle = 210°
The radius of the circle = 30cm
Area of the sector = πr2 × \(\frac{ θ }{360}\)
Area of the sector = \(\frac{22}{7}\) × 30 × 30 × \(\frac{ 210 }{360}\) = 1650 cm2