Question 5: The diagonals of a rectangle are always the bisectors of the angles.
Question 6: The true statements are:
- A rhombus' diagonals are perpendicular.
- A parallelogram has two sets of parallel sides.
- A kite contains two sets of congruent consecutive sides.
- A trapezoid only has one pair of parallel sides.
The statement "Squares have only 2 right angles" is false, as squares have 4 right angles. The statement "A quadrilateral has six sides" is also false, as a quadrilateral has four sides.