You can solve it by using the Pythagorean Theorem, which is a^2 + b^2 = c^2. A and b are the legs of the triangle, and c is the hypotenuse.
You would have to do 16^2 + 33^2 = c^2. If you solve that, you would get 256 + 1089 = c^2. Simplify that further and you would get 1345 = c^2. Then you have to square both sides, and you would get c = 36.67.
Answer: 36.7