A regular hexagon perhaps?
rectangle
a parallelogram
A kite or arrowhead.
it's a square
A parallelogram is such a shape.
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
rectangle
a parallelogram
rhombus
A kite or arrowhead.
it's a square
rectangle
A parallelogram is such a shape.
The shape you are describing is a rhombus. A rhombus has two pairs of parallel sides, and all four sides are of equal length. Additionally, opposite angles are equal, and the diagonals bisect each other at right angles.
rectangle
Rhombus
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.