Question

The triangles below are similar. What is the length of the missing side?

2


9


6


8

Answer 1

x = 8

Explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

`(5)/(10)` =
`(4)/(x)` ( cross- multiply )

5x = 40 ( divide both sides by 5 )

x = 8

Answer 2

8

Explanation:

it's multiplied by 2 as you go to triangle 2