# Quadrilaterals 4.5 Counterexample

- Author:
- Eric Zhang

- Topic:
- Quadrilaterals

This is a counterexample for #5 on "Quadrilaterals Worksheet #4," asking if a quadrilateral with one diagonal bisected by the other and one pair of opposite sides congruent is necessarily a parallelogram.
The answer is no, as seen in AFCD, constructed from an actual parallelogram.