None because the sum of a triangles smaller sides must be greater than its longest side
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bobs ur uncle
Only 3: [1,4,4], [2,3,4] and [3,3,3] Remeber that the sum of the lengths of any two sides MUST be greater than the third side. So triangles like [1,2,6] cannot exist.
There is one equilateral triangle with 3 equal sides of 7in
There is only one triangle whose sides have the given values. There can, of course, be countless copies.