Question

Troy is building a model sailboat to scale. The actual boat sail measures as follows: 28 ft and 36 ft and 20 ft


Which set of model sail side lengths would be proportional to the actual sail?

a. Not enough information
b. 10 in, 12 in, 14 in
c. 5 in, 14 in, 18 in
d. 5 in, 7 in, 9 in

Answer 1

Set up proportions

Answer 2

How?

Answer 3

Like 28/20 = 36/x

Answer 4

The one on the left was a 28

Answer 5

Put them all like this, then simplify them. If the simplified fractions are all the same, then that's the answer \(\huge\ddot\smile\)