Yes as for instance an arrowhead or a kite which are both 4 sided quadrilaterals.
A kite or a trapezoid
triangle
No.
quadrilateral , trapezoid ,polygon ,not a parallelogram
a rhombus
a quadrilateral
A kite or a trapezoid
a triangle
No.
triangle
yes
quadrilateral , trapezoid ,polygon ,not a parallelogram
No, a trapezoid can't be a parallelogram. By definition, a trapezoid is a quadrilateral (four-sided figure) with only two parallel sides. A parallelogram, by definition, is a quadrilateral with two pairs of parallel sides.
No
a rhombus
no
Yes because a trapezoid and a parallelogram are both 4 sided quadrilaterals