Question
Calculate the area of a sector of a circle having a radius
of 21 cm, if the angle at the center made by the sector is 60°.Solution
ATQ,
Area of sector = (A/360) × π × radius² (Here 'A' is the angle subtended by sector at centre)
So, required area = (60/360) × (22/7) × 21²
= (1/6) × (22/7) × 441
= 231 cm²
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