class-10th math exercise 12.2(solution) answers
Find the area of a sector of a circle with radius 6 cm if angle of the sector is 60° .
solution:- Given radius=6 cm
angle(θ)=60°
The area of a sector = 𝝅r^2θ/360°
= {(22/7)×(6)^2×60°}/360°
=(22×36×60°)/7×360°
=(22×36)/6×7
=22×6/7
=(132/7)cm^2
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