Exercise 36 Page 769

Two similar solids have the same shape and all of their corresponding dimensions are proportional. The ratio of corresponding linear dimensions of two similar solids is the scale factor. With this in mind, we will consider the given cubes.

Notice that all sides of a cube are congruent. Therefore solids are similar. Let's find a scale factor. To do so, we need to calculate the ratio of heights.

6/8

ReduceFrac

a/b=.a /2./.b /2.

3/4

FracToScale

\dfrac a b = a:b

3:4