Khan/khan-exercises — Issue #11168: Congruency postulates - I gave the correct answer!
Author: KhanBugz
Created: 2012-01-13 21:15:30+00:00
State: open
Labels: chrome, other, win7

I give the correct answer and it tells me I got it wrong. But on the second attempt it says I'm correct.

[congruency_postulates.html?seed=138&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=138&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=138&problem=0&debug&activity=%5B%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B0.4663712016879349%2C0.99319592012783%5D%2C%5B0.9190603058239474%2C-0.4000378831301894%5D%2C%5B4%2C4%5D%2C%5B1.0119896505168962%2C2.7316648560707635%5D%5D%22%2C9%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B0.28497444399710203%2C1.5514777349698758%5D%2C%5B0.9190603058239474%2C-0.4000378831301894%5D%2C%5B4%2C4%5D%2C%5B2.3365289882125486%2C3.2938984480015168%5D%5D%22%2C17%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B0.28497444399710203%2C1.5514777349698758%5D%2C%5B0.9190603058239474%2C-0.4000378831301894%5D%2C%5B4%2C4%5D%2C%5B2.3365289882125486%2C3.2938984480015168%5D%5D%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C14%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C3%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C2%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C6%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B1.3349744439971012%2C2.2014777349698758%5D%2C%5B1.9690603058239464%2C0.24996211686981074%5D%2C%5B5.049999999999999%2C4.65%5D%2C%5B3.3865289882125476%2C3.9438984480015167%5D%5D%22%2C3%5D%5D)

[["Yes",[0.4663712016879349,0.99319592012783],[0.9190603058239474,-0.4000378831301894],[4,4],[1.0119896505168962,2.7316648560707635]],["Yes",[0.28497444399710203,1.5514777349698758],[0.9190603058239474,-0.4000378831301894],[4,4],[2.3365289882125486,3.2938984480015168]],["Yes",[0.28497444399710203,1.5514777349698758],[0.9190603058239474,-0.4000378831301894],[4,4],[2.3365289882125486,3.2938984480015168]],["No",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]],["Yes",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]],["Yes",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]],["Yes",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]],["No",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]],["Yes",[1.3349744439971012,2.2014777349698758],[1.9690603058239464,0.24996211686981074],[5.049999999999999,4.65],[3.3865289882125476,3.9438984480015167]]]

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