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Mathematics 21 Online
OpenStudy (anonymous):

which of the following is not a valid postulate or theorem of proving triangles congruent? A.SSA B.ASA C.AAS D.SAS

Directrix (directrix):

@lynn812 Some ways to prove triangles congruent: Side-Angle-Side Side-Side-Side Angle-Side-Angle Angle-Angle-Side Compare with your questions and you will see what option is not a valid means of proving triangles congruent. Read more at the link: http://library.thinkquest.org/20991/geo/ctri.html

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