Khan/khan-exercises — Issue #14729: Trigonometry 0.5 - menage a trois in trigonometry 0.5
Author: KhanBugz
Created: 2012-02-27 15:50:16+00:00
State: open
Labels: ie8, other, vista

Reporter: johnny97@forum.dk

Someone needs to make a small video about triangels and their matematichal describtion. And about SOH CAH TOA. I have seen it on a earlyer watch of Khan's videos.
The frase: What is cos(∠BAC)? is tricky one for me. First when I figured out, that B was the sharp end of the angel, then it went like a breeze. Okay.

[trigonometry_0.5.html?seed=176&problem=cosTrig1](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_0.5.html?seed=176&problem=cosTrig1&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_0.5.html?seed=176&problem=cosTrig1&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%228%2F17%5C%22%22%2C21%5D%5D)

["8/17"]

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