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How do you find X (The steps) .... any help please? Trying to help my nephew.

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- July 14th 2012, 10:36 PMMarJ75Right Triangle Problem... Finding X
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How do you find X (The steps) .... any help please? Trying to help my nephew. - July 14th 2012, 10:39 PMrichard1234Re: Right Triangle Problem... Finding X
By AAA similarity, triangles ABE and ACD are similar, with a 1:4 ratio (since BE = 3, CD = 12).

Therefore, AE:ED = X:X+60 = 1:4. So 4X = X+60, X = 20. - July 15th 2012, 01:03 AMMarJ75Re: Right Triangle Problem... Finding X
Thank you very much.