In 1–2 sentences, explain how the Triangle Angle Sum Theorem helps prove AAS congruencE

Answer 1

The Triangle Angle Sum Theorem states that the sum of the angles in a triangle is always 180 degrees. In proving Angle-Angle-Side (AAS) congruence, if two angles and the included side of one triangle are known, the third angle can be determined using this theorem, establishing congruence with another triangle that has the same angle measures and corresponding side, thereby confirming AAS congruence.