The sides of a triangle are 7 in., 24 in., and 25 in. is the triangle a right triangle? justify your answer

We are use the Pythagoras Theorem to prove this. 

if the square of the two shorter sides is equal to the square of the longest side, it is a right angle.

a² + b² = 7² + 24²
a² + b² = 49 + 576
a² + b² = 626
√(a² + b²) = √626
√(a² + b²) = 25 in


It is a right angle triangle.

Where’s the problems ? ?