If the arcs of the same length of two circles subtend 75° and 140° at the centre then the ratio of the radii of the circles is ?
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Answer:We know that length of an arc is given by,
S = R*X , where X = angle subtended by the arc at center in degrees.
Using this,
S = A*60
S = B*75 ,
ratio of radii = A/B = 75/60 = 5/4
Step-by-step explanation:
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