Question

How can you use isometries to prove congruence theorems?

Answer 1

I think this is what your asking

Explanation:

Isometries are sometimes also called congruence transformations. Two figures that can be transformed into each other by an isometry are said to be congruent (Coxeter and Greitzer 1967, p. ... If a plane isometry has more than one fixed point, it must be either the identity transformation or a reflection.