Prove If SAA then SAS Prove If SAA then SASSolutionSAA Rule

Solution

SAA Rule --- if one side, an adjacent angle, and the opposite angle of one triangle are congruent, respectively, to one side, an adjacent angle, and the opposite angle of the other triangle, then two triangles are congruent.

Since two angles are equal.

Sum of all three angles is 180 deg.

So third angle is also equal.

Since one side is already equal. and second side is also equal which is corresponding to two other angles.

Hence two sides and third angle is equal. Hence SAS is proved.