Assertion: polygon | /r/HasProperty | congruent
Facets:
Source sentences:
text: For two polygons to be congruent, they must have an equal number of sides (and hence an equal number—the same number—of vertices).
text: Two polygons with n sides are congruent if and only if they each have numerically identical sequences (even if clockwise for one polygon and counterclockwise for the other) side-angle-side-angle-... for n sides and n angles.