Khan/khan-exercises — Issue #9416: Congruency postulates - congruency postulates 
Author: KhanBugz
Created: 2011-12-23 21:48:52+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

one of the questions is 'yes' but it is saying neither one of them is correct

[congruency_postulates.html?seed=196&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=196&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=196&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.8433058988377642%2C5.966533797558331%5D%2C%5B-4.985835958494368%2C5.6305888393356325%5D%2C%5B2.908379342014891%2C2.1326672511166875%5D%2C%5B-1.8433058988377642%2C5.966533797558331%5D%5D%22%2C64%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-1.8433058988377642%2C5.966533797558331%5D%2C%5B-4.985835958494368%2C5.6305888393356325%5D%2C%5B2.908379342014891%2C2.1326672511166875%5D%2C%5B-1.8433058988377642%2C5.966533797558331%5D%5D%22%2C4%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-0.6386559149689892%2C-0.032729307317584944%5D%2C%5B-2.3500000000000005%2C2.6242719372116605%5D%2C%5B-1.9304476181141963%2C-6.000000000000001%5D%2C%5B-0.6386559149689892%2C-0.032729307317584944%5D%5D%22%2C46%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B0.5982268974881548%2C6.947991187411555%5D%2C%5B3.3807068704404957%2C5.449271937211662%5D%2C%5B-5.250000000000001%2C5.194341427751046%5D%2C%5B0.5982268974881548%2C6.947991187411555%5D%5D%22%2C18%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B0.5982268974881548%2C6.947991187411555%5D%2C%5B3.3807068704404957%2C5.449271937211662%5D%2C%5B-5.250000000000001%2C5.194341427751046%5D%2C%5B0.5982268974881548%2C6.947991187411555%5D%5D%22%2C21%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-3.044969370407422%2C6.572286305052502%5D%2C%5B-5.216136569718534%2C4.275682903627662%5D%2C%5B3.058118768479146%2C6.743635343694102%5D%2C%5B-3.044969370407422%2C6.572286305052502%5D%5D%22%2C15%5D%5D)

[["Yes",[-1.8433058988377642,5.966533797558331],[-4.985835958494368,5.6305888393356325],[2.908379342014891,2.1326672511166875],[-1.8433058988377642,5.966533797558331]],["No",[-1.8433058988377642,5.966533797558331],[-4.985835958494368,5.6305888393356325],[2.908379342014891,2.1326672511166875],[-1.8433058988377642,5.966533797558331]],["No",[-0.6386559149689892,-0.032729307317584944],[-2.3500000000000005,2.6242719372116605],[-1.9304476181141963,-6.000000000000001],[-0.6386559149689892,-0.032729307317584944]],["No",[0.5982268974881548,6.947991187411555],[3.3807068704404957,5.449271937211662],[-5.250000000000001,5.194341427751046],[0.5982268974881548,6.947991187411555]],["Yes",[0.5982268974881548,6.947991187411555],[3.3807068704404957,5.449271937211662],[-5.250000000000001,5.194341427751046],[0.5982268974881548,6.947991187411555]],["Yes",[-3.044969370407422,6.572286305052502],[-5.216136569718534,4.275682903627662],[3.058118768479146,6.743635343694102],[-3.044969370407422,6.572286305052502]]]

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