Question

The diameters of three concentric regions of an archery target are in the ratio of 1:2:3. Find the ratio of the area of each region.
(Steps to be shown please)
(Please answer it fast as it is very urgent!!!)

Answer 1

given ratio is 1:2:3
therefore radii are r:2r:3r
therefore areas are Πr^2:4Πr^2:9Πr^2
I.e.1:4:9