ANSWER
Not a right triangle
EXPLANATION
In a right triangle, the hypotenuse is always the longest side. If these are the side lengths of a right triangle, the sides would be,
The Pythagorean theorem must be true for any right triangle,
[tex]8^2=5^2+6^2[/tex]
Let's see if it is indeed true,
[tex]64=25+36[/tex][tex]64=61\to not.true[/tex]
If the Pytagorean theorem is nort true, then this is not a right triangle
