Question
Two rectangles are similar. If the height of the first rectangle is 3 inches, and the height if the second rectangle is 9 inches, how much larger is the second rectangle's area?
Answers
Reiny
areas of similar figures are proportional to the square of their sides
area1 : area2 = 3^2 : 9^2
= 9 : 81
= 1 : 9
area1 : area2 = 3^2 : 9^2
= 9 : 81
= 1 : 9