Khan/khan-exercises — Issue #10359: Angles of a polygon - HOW DO I KNOW THAT A POLYGON EQUALS 300???
Author: KhanBugz
Created: 2012-01-05 01:31:09+00:00
State: open
Labels: hard, ie8, ie9, win7

I don't know how to tell the difference.:(

[angles_of_a_polygon.html?seed=198&problem=exterior](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/angles_of_a_polygon.html?seed=198&problem=exterior&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/angles_of_a_polygon.html?seed=198&problem=exterior&debug&activity=%5B%5D)

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