Khan/khan-exercises — Issue #12571: Trigonometry 2 - Incorrect explanation
Author: KhanBugz
Created: 2012-01-31 18:27:47+00:00
State: open
Labels: ipad, safari, wrong-or-unclear

The explanation of this problem says that line AC is adjacent to angle BAC which it isn't. This even gets the problem answer wrong.

[trigonometry_2.html?seed=19&problem=cos](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_2.html?seed=19&problem=cos&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_2.html?seed=19&problem=cos&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22%3Ccode%20style%3D%5C%5C%5C%22display%3A%20none%3B%20%5C%5C%5C%22%3E3%3C%2Fcode%3E%5C%22%22%2C34%5D%2C%5B%22hint-activity%22%2C%220%22%2C5%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22hint-activity%22%2C%220%22%2C8%5D%2C%5B%22hint-activity%22%2C%220%22%2C10%5D%5D)

["3"]

Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3

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