Khan/khan-exercises — Issue #4468: Angles 1 - 456
Author: KhanBugz
Created: 2011-10-17 15:42:04+00:00
State: open
Labels: ie8, ie9, win7

this dont make sence

[angles_1.html?seed=54&problem=alternate-exterior-and-complementary-angles](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/angles_1.html?seed=54&problem=alternate-exterior-and-complementary-angles&debug)

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