yes
yes
All squares are parallelograms, but all parallelograms are not squares.
No trapezoids are parallelograms, and no parallelograms are trapezoids.
No trapezoids are parallelograms, and no parallelograms are trapezoids.
No but all parallelograms are trapezoids
No, but all parallelograms are trapezoids.
No. All rhombi (rhombuses) are parallelograms but all parallelograms are not rhombi.
By definition, all squares are parallelograms. Not all parallelograms, however, are squares. All rectangles and rhombuses are also parallelograms.
No trapezoids are parallelograms, and no parallelograms are trapezoids.
In fact, some are rectangles, but not all are.
Yes all squares are parallelograms but not all parallelograms are squares.