Khan/khan-exercises — Issue #14539: Quadrilateral types - Quadrilateral Questioning
Author: KhanBugz
Created: 2012-02-23 22:20:27+00:00
State: open
Labels: ie8, ie9, win7, wrong-or-unclear

The picture shows a quadrilateral with the inside angles of 149 degrees, 142 degrees, 31 degrees, and 38 degrees. It states this is a parallelogram

[quadrilateral_types.html?seed=132&problem=trapezoid](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_types.html?seed=132&problem=trapezoid&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/quadrilateral_types.html?seed=132&problem=trapezoid&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22Isosceles%20Trapezoid%5C%22%22%2C12%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22Isosceles%20Trapezoid%5C%22%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C1%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%5D)

["Isosceles Trapezoid","Isosceles Trapezoid"]

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 2.0.50727; SLCC2; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; MALN; .NET4.0C)

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