Khan/khan-exercises — Issue #11015: Parallel lines 1 - can't c problem
Author: KhanBugz
Created: 2012-01-12 04:16:19+00:00
State: open
Labels: ie8, ie9, not-showing, win7

can't c problem

[parallel_lines_1.html?seed=108&problem=0 (corresponding_angles)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parallel_lines_1.html?seed=108&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/parallel_lines_1.html?seed=108&problem=0&debug&activity=%5B%5D)

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