Answer :
(1) Radius of circle, r = 7cm
Area of circle,AC = πr2
⇒ AC = 154 sq. cm
∴ area of circle is 154 sq.cm
(2) Angle subtended by the arc = 60°
As we know,
⇒ A(O- MBN) = 25.7 sq. cm
(3) A(O- MCN) = Area of circle – A(O – MBN)
⇒ Area(O – MCN) = AC – 25.7
⇒ Area(O – MCN) = 154 – 25.7
∴ Area of major sector is 128.3 sq. cm
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