Decide whether you can deduce by the SSS, SAS, or ASA postulate that another triangle is congruent to . If so, write the congruence and name the postulate used. If not, write no congruence can be deduced.
by SAS postulates.
Consider the figure.
The Angle-Side-Angle Postulate (ASA) states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent.
The Side-Side-Side Postulate (SSS) says triangles are congruent if three sides of one triangle are congruent to the corresponding sides of the other triangle.
SAS Postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the triangles are congruent.
From both the triangles and , it is clear that
Therefore, the two triangles are congruent by the SAS postulate.
Thus, the triangles are congruent by SAS postulate.
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