16.3 Point Symmetry and Tests for the Parallelogram
Point 2 of 5
16.3.2 Properties of Point Symmetry
Core idea
Every line joining matching points passes through the same point and is bisected by it, as if each point were bounced across to the other side
Module goal. Introduce point symmetry as a fresh way of seeing symmetry, explain why a parallelogram has it, and systematically build up the various ways to test for one
eastmath.com · 16.3 Point Symmetry and Tests for the Parallelogram · 16.3.2 Properties of Point Symmetry