Khan/khan-exercises — Issue #6961: Measuring angles - Protractor is inaccurate
Author: KhanBugz
Created: 2011-11-23 09:02:14+00:00
State: open
Labels: firefox, hard, win7

The answer will often be 1 degree off of what it appears to be. For example 46 degrees instead of 45 which is near impossible to tell. It is also awkward to rotate and use this protractor on the computer.

[measuring_angles.html?seed=69&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/measuring_angles.html?seed=69&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/measuring_angles.html?seed=69&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22145%5C%22%22%2C93%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22146%5C%22%22%2C2%5D%2C%5B%22correct-activity%22%2C%22%5C%22144%5C%22%22%2C2%5D%5D)

["145","146","144"]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1

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