CBSE Class 11-science Answered
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 | 04 Jun, 2014, 13:23: PM
Let r1 and r2 be the radii of the two circles. Given that
![](https://images.topperlearning.com/topper/questions/3323_image045.gif)
since length of each arc is same
so![](https://images.topperlearning.com/topper/questions/3323_image046.gif)
so
![](https://images.topperlearning.com/topper/questions/3323_image046.gif)
![](https://images.topperlearning.com/topper/questions/3323_image047.gif)
Answered by | 04 Jun, 2014, 15:23: PM
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