The third side should be not

As the triangle is right-angled by Pythagoras. For a counterexample, consider a triangle with sides

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- October 22nd 2009, 10:03 AM #1

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## Help!

Prove the following result:

A triangle with sides that can be written in the form n^2+1,n^2-1, and 2(where n>1) is right-angled. Show by means of a counterexample, that the converse is false.

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I am not sure how to do this!

- October 22nd 2009, 10:32 AM #2

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