Answer:
Without having any of the side lengths, we would only be able to identify a right angle if there is a small square in the corner of any of the angles. That would indicate a right angle and there for a right triangle.
With the side lengths, you can go by the pythagorean theorem or if side A and side B equal side C or the hypotenuse (the longest side, which is alway directly across from the right angle.)
A + B = C it would be a right angle.
Step-by-step explanation:
