Fedlimid Doibhilin
Fedlimid Doibhilin voted up Tom Jackson's answer
Two rectangles are similar. If the height of the first rectangle is 3 inches, and the height of the second rectangle is 9 inches, how much larger is the second rectangle's area?

If the two rectangles are similar, then the ratio of the side of the 3 inch to the width of the 3 inch must equal the ratio of the side of the 9 inch to the width of the 9 inch

To state that mathematically 3/x = 9/y from which y = 3x for this "family" … Read more