Khan/khan-exercises — Issue #14806: Quadrilateral angles - in quadrilateral angles
Author: KhanBugz
Created: 2012-02-28 00:17:26+00:00
State: open
Labels: ie8, ie9, vista, wrong-or-unclear

Reporter: ecoyner@gmail.com

all 4 sides of quadrilateral were distinct. 29 degrees was given. consecutive angle was marked x. 151 degrees was "correct" but would mean quadrilateral is a trapezoid. must that be true?

[quadrilateral_angles.html?seed=108&problem=parallelogram2](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=108&problem=parallelogram2&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=108&problem=parallelogram2&debug&activity=%5B%5D)

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