Tell whether the triangle with the given side lengths is a right triangle. Y/N question

Answer:
Yes it is a right triangle.
Step-by-step explanation:
Because the Pythagorean Theorem states that [tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]85^{2}=7225\\84^{2}=7056\\13^{2}=169\\7056+169=7225[/tex]