Square
a square
If the shape (a quadrilateral) has only 2 parallel sides, it is a trapezoid (UK trapezium).A shape with four sides and two sets of parallel sides is a parallelogram (rectangle, square, rhomboid, rhombus) because these figures have four sides and two sets of parallel sides.
Nope, never. Parallelograms are classified as having 1 or 2 sets of parallel sides, not triangles.
A trapazoid has only has to have 1 set parallel sides a parallelogram is 2 sets of parallel sides
No. A parallelogram has two sets of parallel sides.
rhombus
2 sets of equal sides
Yes
Yes.
It can be a square or a rectangle
a figure that has 2 sets of congruent sides
yes
A tetrahedron
Yes.
yes
parallelogram