Khan/khan-exercises — Issue #6558: Congruency postulates - Congruency postulates
Author: KhanBugz
Created: 2011-11-17 20:18:48+00:00
State: open
Labels: firefox, other, win7

Reporter: karistadem@gmail.com

I made a congruent angle and clicked "Yes- and I've constructed a congruent triangle" and it said i was wrong. Then I clicked on "No" and it said "Your answer is almost correct, but the two triangles are congruent.Prove your answer by trying to construct a incongruent triangle." So I did and it said I was wrong.

[congruency_postulates.html?seed=8&problem=0](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=8&problem=0&debug)

[Answer timeline](http://sandcastle.khanacademy.org/media/castles/Khan:master/exercises/congruency_postulates.html?seed=8&problem=0&debug&activity=%5B%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-3.974205587885497%2C5.989690294426418%5D%2C%5B-5.063632794496869%2C3.5263113909194352%5D%2C%5B0.5382187951602062%2C5.042279326631054%5D%2C%5B-3.974205587885497%2C5.989690294426418%5D%5D%22%2C25%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B0.8507944121145021%2C2.9146902944264177%5D%2C%5B-0.23863279449687003%2C0.45131139091943506%5D%2C%5B5.363218795160205%2C1.9672793266310542%5D%2C%5B0.8507944121145021%2C2.9146902944264177%5D%5D%22%2C21%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B0.8507944121145021%2C2.9146902944264177%5D%2C%5B-0.23863279449687003%2C0.45131139091943506%5D%2C%5B5.363218795160205%2C1.9672793266310542%5D%2C%5B0.8507944121145021%2C2.9146902944264177%5D%5D%22%2C8%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-3.8992055878854988%2C5.989690294426419%5D%2C%5B-4.988632794496871%2C3.5263113909194344%5D%2C%5B0.6132187951602042%2C5.0422793266310535%5D%2C%5B-3.8992055878854988%2C5.989690294426419%5D%5D%22%2C81%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-0.476208411451168%2C5.989690294426419%5D%2C%5B0.6132187951602042%2C3.5263113909194344%5D%2C%5B-4.988632794496871%2C5.0422793266310535%5D%2C%5B-0.476208411451168%2C5.989690294426419%5D%5D%22%2C11%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-0.476208411451168%2C5.989690294426419%5D%2C%5B0.6132187951602042%2C3.5263113909194344%5D%2C%5B-4.988632794496871%2C5.0422793266310535%5D%2C%5B-0.476208411451168%2C5.989690294426419%5D%5D%22%2C5%5D%2C%5B%22incorrect-activity%22%2C%22%5B%5C%22Yes%5C%22%2C%5B-3.8992055878854988%2C5.989690294426419%5D%2C%5B-4.988632794496871%2C3.5263113909194344%5D%2C%5B0.6132187951602042%2C5.0422793266310535%5D%2C%5B-3.8992055878854988%2C5.989690294426419%5D%5D%22%2C4%5D%2C%5B%22correct-activity%22%2C%22%5B%5C%22No%5C%22%2C%5B-3.724205587885499%2C6.014690294426419%5D%2C%5B-4.813632794496871%2C3.5513113909194347%5D%2C%5B0.788218795160204%2C5.067279326631054%5D%2C%5B-3.724205587885499%2C6.014690294426419%5D%5D%22%2C195%5D%5D)

[["Yes",[-3.974205587885497,5.989690294426418],[-5.063632794496869,3.5263113909194352],[0.5382187951602062,5.042279326631054],[-3.974205587885497,5.989690294426418]],["No",[0.8507944121145021,2.9146902944264177],[-0.23863279449687003,0.45131139091943506],[5.363218795160205,1.9672793266310542],[0.8507944121145021,2.9146902944264177]],["Yes",[0.8507944121145021,2.9146902944264177],[-0.23863279449687003,0.45131139091943506],[5.363218795160205,1.9672793266310542],[0.8507944121145021,2.9146902944264177]],["No",[-3.8992055878854988,5.989690294426419],[-4.988632794496871,3.5263113909194344],[0.6132187951602042,5.0422793266310535],[-3.8992055878854988,5.989690294426419]],["No",[-0.476208411451168,5.989690294426419],[0.6132187951602042,3.5263113909194344],[-4.988632794496871,5.0422793266310535],[-0.476208411451168,5.989690294426419]],["Yes",[-0.476208411451168,5.989690294426419],[0.6132187951602042,3.5263113909194344],[-4.988632794496871,5.0422793266310535],[-0.476208411451168,5.989690294426419]],["Yes",[-3.8992055878854988,5.989690294426419],[-4.988632794496871,3.5263113909194344],[0.6132187951602042,5.0422793266310535],[-3.8992055878854988,5.989690294426419]],["No",[-3.724205587885499,6.014690294426419],[-4.813632794496871,3.5513113909194347],[0.788218795160204,5.067279326631054],[-3.724205587885499,6.014690294426419]]]

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0) Gecko/20100101 Firefox/8.0

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