The properties of all rhombuses include the following:
- The diagonals bisect each other at a 90-degree angle - True
- All four sides are equal length - True
- The diagonals are congruent - False (The diagonals in a rhombus are not necessarily congruent; they are orthogonal and bisect each other but can be of different lengths.)
- All angles are 90 degrees - False (A rhombus does not have to have all angles as 90 degrees; however, if it does, it is a square.)
- Opposite angles are equal - True
So, the correct properties of all rhombuses are:
- The diagonals bisect each other at a 90-degree angle
- All four sides are equal length
- Opposite angles are equal