
### Instruction: help me answer this question If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii., think step by step
### Assistant:  , The answer is To find the ratio of the radii, we first need to convert the angles to radians and then use the ratio of the arc-lengths formula. The final answer would be a simplified ratio of the radii based on the given angles.
