Not all polygon have two pairs of parallel sides. For example, a square will, but not a triangle.
An isosceles trapezoid has a pair of parallel sides and a pair of equal base angles
A rectangle perhaps?
Any polygon with more than 3 sides can have two pairs of parallel sides.If it has only four sides and they make two parallel pairs, then it's a parallelogram.
An irregular quadrilateral, though it could possibly be a kite if there are two pairs of sides of equal length
Not all polygon have two pairs of parallel sides. For example, a square will, but not a triangle.
It depends on the actual shape of that octagon. It CAN have two pairs of parallel sides. A regular octagon has 4 pairs of parallel sides.
An isosceles trapezoid has a pair of parallel sides and a pair of equal base angles
A parallelogram has 2 pairs of parallel sides.
A rectangle perhaps?
A parallelogram, or variants of polygons with 6 or more sides.
quadrilateral
Any polygon with more than 3 sides can have two pairs of parallel sides.If it has only four sides and they make two parallel pairs, then it's a parallelogram.
A four sided polygon with two pairs of parallel sides is called a Parallelogram.
An isosceles triangle. It has two pairs of equal sides, which are also not parallel.
5 pairs of parallel sides.
An irregular quadrilateral, though it could possibly be a kite if there are two pairs of sides of equal length