SOLUTION: https://myopenmaths3.s3.amazonaws.com/qimages/2.5.5a.PNG

Question 1191941: https://myopenmaths3.s3.amazonaws.com/qimages/2.5.5a.PNG

Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
What help do you need? Are those triangles similar? Can we infer the corresponding parts as appear?
Answer by ikleyn(52803) (Show Source): You can put this solution on YOUR website!
.

Isn't that obvious?

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