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EXERCISE 1.21) Find the length of an are of circle which subtendsan angle of 108° at the centre, if the radius of thecircle is 1S ems

Answer»

We Know That

Angle(in Radian) = Arc/ Radius

108° = 108π/180= 3π/5

3π/5 = Arc/159πcm = Arc28.28cm = Arc



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