Should be more time, absolutely. Last question should be removed as you don't need 90 degree angles to use trigonometry. The theorem is the pythagorean theorem, pythagoras just invented it.
Woah woah woah. Not "Bad quiz". The quiz is short-timed and could use more questions, like the special rules for 45-45-90 and 30-60-90 triangles, and some minor tweaks, that's all.