Khan/khan-exercises — pull request #14195 by mwahl (2012-02-19 16:30:56+00:00)
Title: Add exercises: Trigonometry 0.5/1.5

Modified Trigonometry 1/2 to not require radicals per teacher/student feedback. All triangles generated are pythagorean triples.

TODO: Improve hints for Trigonometry [0.5|1|1.5|2] to be much more explicit.