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प्रश्न
उत्तर
Radius of the circle, r = 7 cm
m(arc MBN) = ∠MON = θ = 60º
A(O-MCN) = Area of the sector OMCN
= Area of the circle − Area of the sector OMBN
= 154 − 25.7
= 128.3 cm2
Taking Question image data : m(arcMBN) = 68°
A(O - MBN) = `(68/360) ` × area of circle
= 29.09 cm²
A(O - MCN) = area of circle - A(O - MBN)
=> A(O - MCN) = 154- 29.09 = 124.91 cm²
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