Khan/khan-exercises — Issue #7785: Solid geometry - I am unable to enter the right answer
Author: KhanBugz
Created: 2011-12-05 07:18:15+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: Augustinussextus@gmail.com

the question is "What is the surface area of a cylinder with base radius 3 and height 9?" the right answer, 54 pi is not accepted when I clicked 'check answer' I already matched it with the hint so I'm definitely right

[solid_geometry.html?seed=167&problem=cylinder-T](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solid_geometry.html?seed=167&problem=cylinder-T&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/solid_geometry.html?seed=167&problem=cylinder-T&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2254%20pi%5C%22%22%2C33%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2254%20pi%5C%22%22%2C71%5D%2C%5B%22hint-activity%22%2C%220%22%2C2%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%2C%5B%22hint-activity%22%2C%220%22%2C7%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2254pi%5C%22%22%2C11%5D%5D)

["54 pi","54 pi","54pi"]

Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2

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