Question

The solid described is similar to a larger solid with the given scale factor. find the surface area and volume of the larger solid:
A right cylinder with a surface area of 48pi square centimeters and a volume of 45pi cubic centimeters; scale factor 2:3

Answer 1

so because the larger cyl. is 1.5 times bigger, apply 1.5 to 48pi, and you get 72pi sq. cm.To get the 1.5 you divide 3/2 from the scale ratio.