Final answer:
The false statement among the options provided is that diagonals of a rhombus are congruent and perpendicular while they are perpendicular they are not congruent.
Step-by-step explanation:
To evaluate which of the given statements regarding geometric figures is false, we must review the properties of each.
- The diagonals of a rectangle are congruent.
- Diagonals of a rhombus are congruent and perpendicular to each other.
- Opposite angles of a rhombus are congruent.
- Angles of a square are all right angles.
Out of the given statements the second one is false. In a rhombus, the diagonals are perpendicular but they are not congruent; instead, they bisect each other at right angles and split the rhombus into four right triangles.