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23/06/2021 11:05 am
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Find the area of a quadrant of a circle whose circumference is 22 cm.
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23/06/2021 11:07 am
Circumference of the circle, C = 22 cm
Let the radius of the circle = r
As C = 2πr = 22,
R = 22/2π cm
= 7/2 cm
∴ Area of the quadrant = (θ/360°) × πr2
Here, θ = 90°
A = (90°/360°) × πr2 cm2
= (49/16) π cm2
= 77/8 cm2
= 9.6 cm2