The triangles are similar. What is the value of x? x =

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1 Answer
Jan 18, 2018

Understand similarity’s definition

Explanation:

So by definition
36/12 =15/5 = 39/(x-10)
Now solve for x
39/(x-10) = 36/12 = 15/5 = 3
Hence 13/(x-10) = 1
Therefore x=23
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