Khan/khan-exercises — Issue #6721: Congruency postulates - Congruency postulates practice broken
Author: KhanBugz
Created: 2011-11-20 00:19:53+00:00
State: open
Labels: chrome, win7, wrong-or-unclear

Reporter: atheistkharm@gmail.com

"Is Side-Side-Angle a triangle congruency postulate?"

This practice example wants you to construct an incongruent or congruent triangle with the flash media and answer yes or not if it is a congruent triangle or not.

No matter what you pick or if the triangle is constructed or not -- it reports you get it wrong. I have tired reloading the page and that did not help. I believe there is a problem with this question.

[congruency_postulates.html?seed=105&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=105&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=105&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.183244060748034%2C1.2730074843813854%5D%2C%5B-0.357682327194069%2C3.325892353885211%5D%2C%5B-5.038708215512323%2C6.01840434867203%5D%2C%5B-1.183244060748034%2C1.2730074843813854%5D%5D%22%2C46%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B3.2868853720357154%2C0.8416213260356749%5D%2C%5B5.496368891431727%2C0.9602427442694244%5D%2C%5B5.960158114660338%2C6.34044011663353%5D%2C%5B2.8905155060030943%2C0.02630381929036041%5D%5D%22%2C53%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B2.600713560349508%2C5.040955813161061%5D%2C%5B1.9718064932605444%2C2.919549589847871%5D%2C%5B6.885231490281928%2C0.6790409404956756%5D%2C%5B1.9654421303815002%2C5.6877029954282134%5D%5D%22%2C6%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B3.7773295113738214%2C4.1986020103566934%5D%2C%5B1.9718064932605444%2C2.919549589847871%5D%2C%5B4.449770403879993%2C-1.878504085012814%5D%2C%5B3.7773295113738214%2C4.1986020103566934%5D%5D%22%2C11%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C15%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C18%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C2%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.221106204629821%2C1.1278651884764845%5D%2C%5B-0.3469714358964946%2C3.1605424549007157%5D%2C%5B-4.962660991230921%2C5.9635826147901945%5D%2C%5B-1.221106204629821%2C1.1278651884764845%5D%5D%22%2C1%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-1.156316914627256%2C1.2198854570533193%5D%2C%5B-0.3177707402693182%2C3.2675008449658116%5D%2C%5B-4.981650976860671%2C5.9896039561482715%5D%2C%5B-1.156316914627256%2C1.2198854570533193%5D%5D%22%2C51%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-1.156316914627256%2C1.2198854570533193%5D%2C%5B-0.3177707402693182%2C3.2675008449658116%5D%2C%5B-4.981650976860671%2C5.9896039561482715%5D%2C%5B-1.156316914627256%2C1.2198854570533193%5D%5D%22%2C1%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-0.6819397285461992%2C1.1093889326070285%5D%2C%5B1.5%2C1.4768497935678808%5D%2C%5B-0.16104162778441555%2C-3.661492830269484%5D%2C%5B1.9711856050453394%2C-1.0203302718966758%5D%5D%22%2C41%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-0.6819397285461992%2C1.1093889326070285%5D%2C%5B1.5%2C1.4768497935678808%5D%2C%5B-0.16104162778441555%2C-3.661492830269484%5D%2C%5B1.9711856050453394%2C-1.0203302718966758%5D%5D%22%2C2%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-0.6819397285461992%2C1.1093889326070285%5D%2C%5B1.5%2C1.4768497935678808%5D%2C%5B-0.16104162778441555%2C-3.661492830269484%5D%2C%5B6.525251245301602%2C4.620732496753035%5D%5D%22%2C3%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B3.8046233221616963%2C1.3708896423247836%5D%2C%5B1.625%2C1.7518497935678812%5D%2C%5B-0.03604162778441555%2C-3.3864928302694834%5D%2C%5B3.8046233221616963%2C1.3708896423247836%5D%5D%22%2C14%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B2.1091793621098445%2C-2.549278502921751%5D%2C%5B3.4932542273029323%2C-0.8229456176162863%5D%2C%5B-0.2088518950354996%2C3.108470726161214%5D%2C%5B4.145713102397611%2C-7.5199609143850505%5D%5D%22%2C7%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B4.255288161953105%2C0.6810455361972929%5D%2C%5B5.015802401838269%2C2.7589065888854267%5D%2C%5B0.25231969141855215%2C5.302694448890467%5D%2C%5B4.255288161953105%2C0.6810455361972929%5D%5D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