Khan/khan-exercises — Issue #8950: Geometry 1 - Circle
Author: KhanBugz
Created: 2011-12-19 04:20:45+00:00
State: open
Labels: hard, ipad, safari

Reporter: Hugoyu2001@gmail.com

It's too hard(even after I watch a video):(

[geometry_1.html?seed=142&problem=circle-d-to-K (circles_1)](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/geometry_1.html?seed=142&problem=circle-d-to-K&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/geometry_1.html?seed=142&problem=circle-d-to-K&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5C%2210%5C%22%22%2C21%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22hint-activity%22%2C%220%22%2C0%5D%2C%5B%22incorrect-activity%22%2C%22%5C%22Qqqqwxcccd%5C%22%22%2C19%5D%5D)

["10","Qqqqwxcccd"]

Mozilla/5.0 (iPad; CPU OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3

MathJax is loaded, ready, queue length: 0