In congruent triangles, all 3 pairs of corresponding angles have the same measure, and all 3 pairs of corresponding sides have the same measure. We do not need to have all 6 pairs of measurements to prove that two triangles are congruent, though! Instead, we can use one of the following properties to prove the congruency: SideSideSide (SSS), SideAngleSide (SAS), or AngleSideAngle (ASA).
