Congruence

Mathematics — Second Preparatory

What congruence means

Two shapes are congruent if one can be placed on the other so that they coincide exactly.
They have the same shape and the same size.
In congruent triangles, corresponding sides are equal in length and corresponding angles are equal in measure.
We write a congruence with the vertices in matching order.
If triangle ABC is congruent to triangle DEF, then A corresponds to D, B corresponds to E and C corresponds to F.
We write: Δ ABC ≅ Δ DEF.

Congruence · 1 / 5