Given triangle ABC prove that I know that but after this i'm lost. Thanks
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Hello arze Originally Posted by arze Given triangle ABC prove that I know that but after this i'm lost. Thanks The relationship you've quoted is correct, but in fact you need to use a similar one; one that begins: ...(1) I'll start the proof for you. See whether you can finish it. ? Can you complete the relationship I started in (1), and so complete the proof? Grandad
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