Question

Sarah made a scale drawing of a dinosaur.• She made the height of the dinosaur 2 inches.• The actual height of the dinosaur is 9 feet.What scale did Sarah use for her drawing?

Answer 1

The proportion Sarah uses is of the form

`2\colon9`

This means that for every two inches she draws, this is equivalent to 9 feet. We can simplify the solution a little bit by doing the ratio:

`(9)/(2)=4.5`

Therefor the scale Sarah uses is 1 in = 4.5 ft.