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What is the number of non-congruent scalene triangles whose sides all have integral length, and the longest side has length 11?

What does it mean by non-congruent scalene triangles? Do we have to use Pythagoras' Theorem and use trial-and-error for each integer until 11?

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    [..]the method of hit-and-trial or the famous trial-and-error is being referred here.2012-03-20
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    @kannappan ya.i am sorry.its trial and error.2012-03-20

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