Answer:
If you take the 2 smallest sides and put it in the pythagreon theorem to get the other side length.
Step-by-step explanation:
So if you have a triangle with side lengths, 3, 4, and 5, you can use the exact equation below.
[tex] {3}^{2} + {4}^{2} = {5}^{2} [/tex]
Because this is true, then the triangle does have a right angle.
