If the ratio of areas of circles are what is the ratio of their radii.
Step 1: Find the relation between the areas of circles.
Assume that, be the radii of the circles.
According to the given information, ratio of area i.e.
Step 2: Find the required ratio of radii
Since, It is given that .
Therefore, .
Take square root on both sides.
Hence, the ratio of the radii of the circles are .