Khan/khan-exercises — Issue #12838: Quadrilateral angles - Question not clear
Author: KhanBugz
Created: 2012-02-01 22:52:42+00:00
State: open
Labels: firefox, vista, wrong-or-unclear

Reporter: phillipzhao.meng@gmail.com

The figure is not described as a trapezoid.

[quadrilateral_angles.html?seed=93&problem=trapezoid](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=93&problem=trapezoid&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=93&problem=trapezoid&debug&activity=%5B%5B%22correct-activity%22%2C%22%5C%2279%5C%22%22%2C216%5D%5D)

["79"]

Mozilla/5.0 (Windows NT 6.0; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

MathJax is loaded, ready, queue length: 0