if two cones are similar and the ratio between the lengths of the radii is 7:3, what is the ratio of their surface areas
geometry - drwls, Monday, April 12, 2010 at 7:48am
(7/3)^2 , which is 49:9
Any pair of corresponding areas is proportional to the square of any pair of corresponding linear dimensions. Fot volume, the ratio is the cube of any linear ratio.