That they are both identical in size and angles
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Only if the congruent angle is the angle between the two congruent sides (SAS postulate).
When two triangles are congruent, there are 6 facts that are true about the triangles. The triangles have 3 sets of congruent (of equal length) sides and the triangles have 3 sets of congruent (of equal measure) angles.
No. All corresponding sides and angles have to be congruent for the triangles to be congruent.
The triangles are also congruent.
CPCTC is an acronym for the phrase 'corresponding parts of congruent triangles are congruent' It means that once we know that two triangles are congruent, we know that all corresponding sides and angles are congruent.