If in two circles,  arcs of same length, subtend angles 120o and 150o at the centre, find the ratio of their radii.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Let r1 and r2 be the radii of the two circles. Given that
 
since length of each arc is same
so 
 
 

Answered by  | 4th Jun, 2014, 03:23: PM