Square based pyramid
A four sided figure with two pairs of parallel sides.
A four-sided figure with two pairs of parallel sides the same length and four right angles is called a square.
A four sided figure with two pairs of parallel sides.
Parallelogram
Parallelogram.
a rhombus
A trapezoid is a four-sided figure with only one pair of parallel sides. A square will always have two pairs of parallel sides.
A diamond/ rhombus.
A four sided figure with no parallel sides is a trapezium, but it is also an irregular four-sided polygon, tetragon, quadrilateral, or quadrangle.
A parallelogram is by definition made of two pairs of parallel lines; it is always a four sided figure. A hexagon is a six sided figure, so it cannot be a parallelogram.
90 degrees. A rectangle is a four-sided figure with two pairs of parallel sides and four right angles.
A Quadrilateral.