can someone help me with this question please i got it wrong on my test and I want to know how i get the answer :)

Question

anonymous · Answer

attachment

fibonaccichick666 · Answer

i'm betting you assumed that was a right triangle?

anonymous · Answer

$$\frac{35}{25}=\frac{x}{10}$$

anonymous · Answer

yeah i thought it was a right triangle but i didn't understand what i was doing :l

anonymous · Answer

ok i set it up

anonymous · Answer

makes no difference, they are similar triangle solve using any ration

fibonaccichick666 · Answer

so, since they are similar, that means by definition, that the sides are proportionate to the respective sides on the other triangle

fibonaccichick666 · Answer

what you want to do is set up that proportion in order to solve the problem

anonymous · Answer

i did but i don't get 12
and that's the right answer

fibonaccichick666 · Answer

so, which sides match up to each other?

anonymous · Answer

i mean 14

fibonaccichick666 · Answer

|dw:1409107803089:dw|

anonymous · Answer

35 and 25

fibonaccichick666 · Answer

no, they are on the same triangle,

fibonaccichick666 · Answer

they can't match up to each other