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Geometry Question (1 Viewer)

Ambility

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Hey everyone, I was just doing a past paper, and I found this question. I feel like x should be equal to 12, but I don't know how to show it. If I could see working out for this, that would, be great.

Q3a.png
 

Speed6

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Hey Ambility, what is the solution? I have an answer, just want to check
 

DatAtarLyfe

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The proof for bluegas's solution is that transverse lines cut parallel lines in equal proportions
 
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Ambility

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I literally have never known this rule, that transversals cut parallel lines in the same ratio. I thought I'd have to prove that the two trapezoids were similar. The answer is 12 cm. Thanks guys.
 

Speed6

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I got 12cm as well

And the proof is DAL's post
 

calamebe

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This is a year 9 theorem that nearly everyone forgets it was even tested in 2013 hsc!!
Lol, I'm grateful then that my teacher reminded us of it again this year, I don't even remember doing anything about that in year 9.
 

Drsoccerball

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Lol, I'm grateful then that my teacher reminded us of it again this year, I don't even remember doing anything about that in year 9.
bro tbh i dont even remember if i was in year 9 LOL
 

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