Find the area of a sector of circle of radius 21cm and central angle 120°
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area of circle = py r sq
22/7 mul 21 sq
22 mul 63
1386
22/7 mul 21 sq
22 mul 63
1386
Answered by
0
Area =(120/360)(22/7)(21)^2
=(1/3)(22/7)(21*21)
=462
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