Khan/khan-exercises — Issue #8275: Quadrilateral angles - Isosceles trapezoid vs. parallelogram
Author: KhanBugz
Created: 2011-12-09 22:46:34+00:00
State: open
Labels: chrome, lion, wrong-or-unclear

The hints say this shape is a trapezoid, but how is that possible since the two sets of sides are both equal? Why is it not a parallelogram?

[quadrilateral_angles.html?seed=91&problem=isoscelesTrap2](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_angles.html?seed=91&problem=isoscelesTrap2&debug)

["89"]

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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