# Geometry Lesson 6.2

## Theorem 6.1

Opposite sides of a parallelogram are congruent

## Theorem 6.2

Opposite angles of a parallelogram are congruent

## Theorem 6.3

The diagonals of a parallelogram bisect each other

## Theorem 6.4

If three (or more) parallel lines cut off congruent segments on one transversal, then they cut off congruent segments on every transversal