Khan/khan-exercises — Issue #11930: Vertical angles - This exercise doesn't really confirm mastery
Author: KhanBugz
Created: 2012-01-23 21:42:17+00:00
State: open
Labels: firefox, other, win7

All I have to do is enter the same number presented. I don't think it really gauges whether or not I really know what is going on.

[vertical_angles.html?seed=183&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/vertical_angles.html?seed=183&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/vertical_angles.html?seed=183&problem=0&debug&activity=%5B%5D)

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