Square
Yes. There are two sets of sides in a square which are parallel to each other and are perpendicular to the other set. Perpendicular means "at 90 degrees to". Hope this helps you.
It could be a trapezoid having 2 right angles, an obtuse angle and an acute angle
Hexagon.
No, a rhombus has 2 pairs of parallel sides.
I think this person means the trapazoid. It has only one pair of parallel sides.
It could be a trapezoid
A trapazoid has only has to have 1 set parallel sides a parallelogram is 2 sets of parallel sides
Cube
No a trapezoid has only one set of opposite parallel sides of different lengths.
There are two sets of parallel lines in a rectangle, which is to say each of the two sides are parallel to each other.A rectangle has two set of parallel sides
Only if it is a trapezoid (US usage) with one set of parallel sides, or a parallelogram with both sets of opposite sides parallel. The term quadrilateral only means that the shape has 4 sides.