Which set of side lengths can be used to form a right
triangle?
2, 3, 4
30, 40, 50
10, 20, 30
4, 5, 6

I would say 30,40,50 because it equals the degrees of a right triangle which is 120

It is 30, 40, 50, but you have to use the equation for right triangles, which is a^2 + b^2= c^2. You fill in the equation 30^2 + 40^2= 50^2. Then you get 900+1600=2500. Then you add it together and you get 2500=2500.