The scale of a drawing is 1.7cm represents 200m. The following scale drawing measurements are given, calculate their actual measuements: <continued> 1) 5.1cm       2) 15.3cm

3 Answers | Add Yours

dogsg's profile pic

Posted on

This problem has a deceptively simple solution.  Notice that 5.1 = 1.7 X 3  and 15.3 = 1.7 X 9  If 1.7 cm = 200 m, then the answers would be 3 X 200 m or 600 m and 9 X 200 or 1800 m

revolution's profile pic

Posted on

1.7cm=200m

Thus 1cm= 200/1.7 = 117.6m

1) 5.1cm = 5.1*117.6= 600m (to 3 sig. fig.)

2) 15.3 cm = 15.3*117.6= 1800m (to 3 sig. fig.)

lit24's profile pic

Posted on

1. 1.7cm = 200m

therefore 1 cm = 200 divided by 1.7

5.1 cm =  200 divided by 1.7 X 5.1 = 600m

2. 1.7 cm = 200 m

therefore 1cm = 200 divided by 1.7

15.3 cm = 200 divided by 1.7 X 15.3 = 1800m

We’ve answered 333,361 questions. We can answer yours, too.

Ask a question