Khan/khan-exercises — Issue #14727: Quadrilateral angles - Can't tell which angle you're meant to work out
Author: KhanBugz
Created: 2012-02-27 15:22:13+00:00
State: open
Labels: firefox, win7, wrong-or-unclear

In this exercise we're asked to work out what the value of the angle marked 'x' is, but I can't tell which angle 'x' is mean to be (it could be either of the top ones).

[quadrilateral_angles.html?seed=166&problem=trapezoid](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=166&problem=trapezoid&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=166&problem=trapezoid&debug&activity=%5B%5B%22hint-activity%22%2C%220%22%2C97%5D%2C%5B%22hint-activity%22%2C%220%22%2C98%5D%2C%5B%22hint-activity%22%2C%220%22%2C108%5D%5D)

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Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20100101 Firefox/10.0.2

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