Question

Given that the pair of triangles is similar, find the length of the side labeled x.

1st triangle is 4 & 8

2nd triangle is x & 10

Answer 1

This is trivial stuff, stop trying to get easy answers when people are trying to seriously help you understand this...

Answer 2

is it 3.2?

Answer 3

4/x = 8/10

8x = 40

x = 5

Answer 4

@Directrix: How do you know that the correspondence is in that order?

Answer 5

I will say that this question is ill-formed or poorly worded.