I thought the real DAT's angles were much harder than any of the 10 CDP test. Usually on CDP, you can at least eliminate 2 of the answers by just comparing which angles are bigger from the answer choices, for example:
A.3<2<4<1
B.3<1<4<2
C.1<2<3<4
D.1<4<2<3
I always look at the answer choices before looking at any of the angles, I say to myself, "is 3 or 1 smaller" then once you have the answer you can elimate 2 of the choices. Let's say 3 is smaller than 1, that eliminates choices C and D. now all you have to do is compare angles 1 and 2 to see which is bigger.
Like I mentioned earlier, the angles on my DAT last summer were IMO harder than the CDP angles, this was mostly because they gave you choices like:
A.3<1<4<2
B.1<2<3<4
C.2<4<1<3
D.4<2<3<1
When I saw this I was like... oh ****. Not only did the angles take tons more time than what I was used to get through that section, but I think I missed more because I lost track of which angles were which and I was nervous. I was getting 22's on all the CDP test and when I took the test, I got a 19 on this section... I was pissed. Bottom line, angles on the DAT are the hardest section, just do your best.
However, I do have a few tips: For angles less than 90, I like to pretend that i'm riding my dirt bike up the "ramp" and then from there, say to myself... which of these ramps will give me the most air off the jump? Obviously the steeper angle is the biggest and the one i'd rather jump off on a dirtbike. Another tip, for angles bigger than 90, I say "which hillside would I rather ski down? The steeper the "ski slope" the smaller the angle. The bigger the angle, the less extreme of a ski hill. These are just a few tips that often help me visualize which is smaller/bigger. Hope this helps. I'm retaking the test in a month to hopefully improve on all my scores from last year. Good luck.