Khan/khan-exercises — Issue #15653: Geometry 1 - Area
Author: KhanBugz
Created: 2012-03-07 18:10:48+00:00
State: open
Labels: ie8, ie9, other, win7

Question:Suppose the radius of a circle is 5. What is its Area?

Area is radius squared then time pi. 3.14 x 25 is 78.5. But KhanAcademy says it's wrong and im stuck. Please fix the problem.

[geometry_1.html?seed=175&problem=circle-r-to-K (circles_1)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/geometry_1.html?seed=175&problem=circle-r-to-K&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/geometry_1.html?seed=175&problem=circle-r-to-K&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%22%2078.5%5C%22%22%2C105%5D%2C%5B%22hint-activity%22%2C%220%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5C%2278.5%5C%22%22%2C143%5D%2C%5B%22hint-activity%22%2C%220%22%2C3%5D%5D)

[" 78.5","78.5"]

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