**You will be able to determine that the** parallelogram **is a rhombus if at least one of the following conditions is met:**

- If in the parallelogram there is a pair of adjacent equal sides - it is a rhombus.
- If in the parallelogram the diagonals bisect each other, forming angles of $90^o$ degrees, that is, they are perpendicular - it is a rhombus.
- If in the parallelogram one of the diagonals is the bisector - it is a rhombus.