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| 1. |
Sas congruency theorem |
| Answer» SAS congruence criterion: If\xa0two sides and included an angle of one triangle are equal to the corresponding two sides and included angle of another triangle then the two triangles are said to be congruent.Consider {tex}\\triangle{/tex}ABC, {tex}\\triangle{/tex}PQRhere AB = PQ, AC = PR and {tex}\\angle{/tex}A = {tex}\\angle{/tex}PHence {tex}\\triangle{/tex}ABC {tex}\\cong{/tex}\xa0{tex}\\triangle{/tex}PQR by SAS congruence criterion. | |