Question

Can someone please help me

Answer 1

20

Explanation:

If the two triangles are similar, then corresponding sides must share a constant ratio. This means that:

`(10)/(6)=(25)/(15)=(x)/(12)`

Let's use the second ratio:

`(25)/(15)=(x)/(12)`

Multiply both sides by 12:

`(25\cdot 12)/(15)=x \\\\x=20`

Hope this helps!