Question 1180981
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With three given sides lengths, two opportunities are possible:


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    - either NO ONE TRIANGLE with the given side lengths does exist (if the triangle inequalities are violated)


    - OR infinitely many such triangles do exists, but they all are congruent.
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With the given sides of 3, 4 and 5 inches, you have classic right-angled triangle.


There are infinitely many such triangles in a plane, and they all are congruent.