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The area of a sector of a circle of diameter 126cm is 4158cm2.calculate the angle subtended at the centre of the circle.(pie 22/7)

 Apr 2, 2021
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Circle area     A = 632 (22/7) = 12474 cm2

 

Sector angle     12474 / 360 = 4158 / x          x = 120          

 

Angle = 120º

 

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 Apr 2, 2021

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