Two obtuse triangles ABC and DEF are represented. Segment BC and segment EF has single tick mark. Angle C and angle F has double tick marks on arc.
If
, then ∆ABC and ∆DEF are congruent by the ASA criterion.
If
, then ∆ABC and ∆DEF are congruent by the SAS criterion.
∆ABC and ∆DEF are congruent if
.
