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