The dimensions of a rectangle are 9 in. and 12 in. What are the dimensions of a rectangle 2/3 as large cut off by a line (a) parallel to the base? (b) parallel to the altitude?

Answer 1

6 by 12 inches

9 by 8 inches

2/3 of 9 = 6

2/3 of 12 = 8

9 by 12 has an area = 108 in^2

6 by 12 has an area = 72. 72 is 2/3 of 108

9 by 8 has an area = 72. 72 is 2/3 of 108

(2/3)(108) = 2(108/3) = 2(36) = 72