Question

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

Answer 1

The Triangle Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees. In proving AAS (Angle-Angle-Side) congruence, once two angles and the included non-included side of one triangle are known, the third angle can be determined using this theorem, thereby establishing that the corresponding angles in both triangles are equal and confirming their congruence.