PAT Keyhole "extend longer/higher"

[N7CS]

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I've been using Bootcamp and I'm having a hard time with the keyhole questions.
I keep choosing the wrong answer with a shorter height/length, like on this problem:

(I hope I don't get in trouble for taking a screenshot.... 🙁 If it's a problem, I'll take it down immediately!)

Does anyone have a good method for figuring this out?

 

[cacajuate]

Yes, practice more. There is no surefire way but to keep exposing your eyes to those type of problems.

The were quite a few that this was the only difference one between the right and wrong answer on my DAT. Keep practicing, you will get it.