Khan/khan-exercises — Issue #8942: Congruency postulates - problem
Author: KhanBugz
Created: 2011-12-19 01:27:26+00:00
State: open
Labels: ie8, ie9, other, vista

Reporter: tkla@bellsouth.net

when i hit,Yes — And I've constructed a congruent triangle it says it's not congruent.However when i hit No — And I've proven it by constructing an incongruent triangle it says,
Your answer is almost correct, but the two triangles are congruent. Prove your answer by trying to construct an incongruent triangle.

[congruency_postulates.html?seed=87&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=87&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=87&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-2.57189926545346%2C5.977568241654788%5D%2C%5B-5.0879373808154895%2C2.8643875413938597%5D%2C%5B0.17650578133060657%2C4.580522063945793%5D%2C%5B-2.57189926545346%2C5.977568241654788%5D%5D%22%2C359%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-2.4968992654534596%2C6.027568241654789%5D%2C%5B-5.012937380815489%2C2.91438754139386%5D%2C%5B0.25150578133060675%2C4.630522063945794%5D%2C%5B-2.4968992654534596%2C6.027568241654789%5D%5D%22%2C8%5D%5D)

[["Yes",[-2.57189926545346,5.977568241654788],[-5.0879373808154895,2.8643875413938597],[0.17650578133060657,4.580522063945793],[-2.57189926545346,5.977568241654788]],["No",[-2.4968992654534596,6.027568241654789],[-5.012937380815489,2.91438754139386],[0.25150578133060675,4.630522063945794],[-2.4968992654534596,6.027568241654789]]]

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