Question

Set up a proportion to solve for x in the following similar triangles,

12
15
8 X-4

Answer 1

x = 14

Explanation:

Since the triangles are similar then corresponding sides are in proportion, that is

`(15)/(x-4)` =
`(12)/(8)` ( cross- multiply )

12(x - 4) = 120 ( divide both sides by 12 )

x - 4 = 10 ( add 4 to both sides )

x = 14