Khan/khan-exercises — Issue #10382: Degrees to radians - rounding errors in program
Author: KhanBugz
Created: 2012-01-05 06:17:52+00:00
State: open
Labels: firefox, wrong-or-unclear, xp

Reporter: nadzy.wilzod@gmail.com

Using 3.14, multiplying by hand, and rounding to the nearest 100th, I keep getting "wrong" answers on the degrees to radians problems - for example, I got this one wrong because I marked "none of the above" when I got 5.442 for 312 degrees in radians. Rounding to the nearest 100th, I got 5.44. Your program insists that 5.45 is the correct answer. In the absence of clarity as to how many digits of Pi to use, and in the further absence of clarity as to whether any answer will be incorrect by a mere 1/100th of a radian, this problem becomes frustratingly ambiguous. Thank-you.

[degrees_to_radians.html?seed=115&problem=1](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/degrees_to_radians.html?seed=115&problem=1&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/degrees_to_radians.html?seed=115&problem=1&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22None%20of%20the%20above.%5C%22%22%2C215%5D%2C%5B%22correct-activity%22%2C%22%5C%225.45%5C%22%22%2C3%5D%5D)

["None of the above.","5.45"]

Mozilla/5.0 (Windows NT 5.1; rv:9.0.1) Gecko/20100101 Firefox/9.0.1

MathJax is loaded, ready, queue length: 0