Khan/khan-exercises — Issue #14321: Trigonometry 0.5 - answer should be 15/8, but showing wrong
Author: KhanBugz
Created: 2012-02-21 18:45:37+00:00
State: open
Labels: chrome, lion, wrong-or-unclear

Reporter: c.scott.hernandez@gmail.com

problem in exercise trig .5:
AC is 15 units long

BC is 8 units long

AB is 17 units long

What is tan(∠ABC) ?

---- won't accept 15/8 as answer

[trigonometry_0.5.html?seed=67&problem=tanTrig1](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_0.5.html?seed=67&problem=tanTrig1&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/trigonometry_0.5.html?seed=67&problem=tanTrig1&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2215%2F8%5C%22%22%2C23%5D%2C%5B%22hint-activity%22%2C%220%22%2C84%5D%2C%5B%22hint-activity%22%2C%220%22%2C85%5D%2C%5B%22hint-activity%22%2C%220%22%2C85%5D%2C%5B%22hint-activity%22%2C%220%22%2C85%5D%2C%5B%22hint-activity%22%2C%220%22%2C85%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2215%2F8%5C%22%22%2C96%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2215%2F8%5C%22%22%2C52%5D%5D)

["15/8","15/8","15/8"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.21 (KHTML, like Gecko) Chrome/19.0.1041.0 Safari/535.21

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