The leg of a right triangle is 2 units and the hypotenuse is 4 units. what is the length, in units, of the other leg of the triangle?

a) √20 units
b) √12 units
c) 6 units
d) 2 units

You would do 4^2 - 2^2 = 16 - 4 = 12. The final answer is B) √12 units. This is because you're doing the reverse Pythagoras' theorem, so you still have to square root. I hope this helps!