a rhombus
square
Yes. A parallelogram is defined as having opposite sides that are parallel and equal in length, and opposite angles that are equal.
trapezoid is the answer!
rhombus
Rectangle
A parallelogram, a rhombus, a square and a rectangle
Opposite sides are parallel; opposite sides are equal; opposite angles are equal.
square
trapizoid
A Square!
-- Opposite sides are parallel.-- Opposite sides are equal.-- Angles are all equal.
rhombus