rectangles and squares
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They are squares and rhombuses
A parallelogram.
All quadrilaterals have 2 diagonals
Quadrilaterals with diagonals that do not meet at 90 degrees are known as non-rectangular or non-square quadrilaterals. Examples include parallelograms, rhombuses, and trapezoids. In these quadrilaterals, the diagonals may intersect at different angles depending on the specific properties of the shape.
Rhombus and square are the only quadrilaterals whose diagonals bisect the angles of the quadrilateral. In both these quadrilaterals, the diagonals intersect at right angles, dividing each angle into two equal parts.