5.
The area of a sector of a circle of radius 7 cm and
central angle 120° is
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Answered by
2
Area of sector = theta /360 πr^2
120/360 π7^2
49×22/7×3
49×22/21
1078/21
51.33.....
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Answered by
1
area of sector =( theta / 360 )* pie radius square
= (120 / 360 )* 22/7 * 7*7
= 22/21*49
= (22*7)/3
= 154/3 cm sq
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