A polygon with four or more sides can meet these requirement.
shape no pairs of perpendicular sides
a Kite
a cross
Square
The perpendicular adjacent sides in the triangle would be 3 sides. It is the basically horizonstal line next to a vertical line(perpendicular) if it was parallel adjacent then only two side of triangle /\ <-- parallel
trapazoid
trapezoid
shape no pairs of perpendicular sides
It could be a right angle triangle
square
a Kite
No anwser impossible
A hexagon.
parallelogram
A trapezoid (or trapezium in some regions) has one set of parallel sides and one set of perpendicular sides. Specifically, a right trapezoid features one pair of parallel sides and the non-parallel sides that are perpendicular to one of the parallel sides. This shape allows for various applications in geometry and design.
For a shape to have parallel sides it needs at least 4 sides
Hexagon.