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 one year ago
Triangle ABD is congruent to triangle CBD
http://curriculum.kcdistancelearning.com/courses/GEOMxHSA09/a/assessments/TTrianglesUnitExam/Geometry_Unit4_Exam_36f1.gif
 one year ago
Triangle ABD is congruent to triangle CBD http://curriculum.kcdistancelearning.com/courses/GEOMxHSA09/a/assessments/TTrianglesUnitExam/Geometry_Unit4_Exam_36f1.gif

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DorelTibi
 one year ago
Best ResponseYou've already chosen the best response.0true or false? Help me Plz!!!

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1If two triangles have two angles and the included side congruent, the triangles are congruent. ASA (anglesideangle).

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Explain why it is true.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The triangles are congruent but not by ASA.

DorelTibi
 one year ago
Best ResponseYou've already chosen the best response.0Because it is a theorem

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Which ways of proving two triangles congruent do you know?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1@methstudent55: if two triangles have two angle congruent, the third is also congruent.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1@mathstudent55: if two triangles have two angle congruent, the third is also congruent. It is not SAS because we only have one common side, and we do not know congruence of the other sides.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1@mathmate You're correct. You can do it by ASA by first stating that the third angles are congruent, but there is a quicker way of doing it that does not require that extra step.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1It still takes an extra step.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1There is a way that just by looking you can immediately conclude the triangles are congruent with out any extra steps.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1To prove by SAS, you need to show that one other pair of sides are congruent.

DorelTibi
 one year ago
Best ResponseYou've already chosen the best response.0o its false because not much information, right?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1@ DorelTibi: sorry that we are discussing the semantics of things, but are you able to show that the triangles are congruent?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1It's not SAS. We don't have info on two sides. We only know about the side in common.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Here it is: AAS. If two angles of a triangle and a not included side are congruent to corresponding parts of another triangle, the triangles are congruent.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1In fact, AAS is the equivalent of ASA, since when two angles are congruent, then congruence of any other corresponding side is sufficient to show congruence. Equivalence means that all AAS cases can be shown to be ASA and viceversa.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Indeed, AAS is easier.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1In the end, if you do it by ASA, you need to show BD is congr to itself and <s CDB and ADB are congruent. If you do it by AAS, you only need to show BD is congr to itself. So either way you need one extra step or two extra steps before the conlcusion.
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