Question

if the arcs of same length in two circles subtend angles 75 degree and 110 degree at the centre .find the ratio of their radii ​

Answer 1

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Answer 2

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: