An irregular hexagon.
A trapezoid has at least one pair.
The only requirement for a trapezoid is that one pair of opposite sides be parallel. There could be trapezoids with a pair of perpendicular lines.
The question contradicts itself. A dodecagon need not have any perpendicular sides.
I think this person means the trapazoid. It has only one pair of parallel sides.
trapazoid
shape no pairs of perpendicular sides
a trapazoid
trapezoid
Any shape, other than a triangle can have a pair of perpendicular sides.
It could be a right angle triangle
The first geometric shape that comes to mind with no perpendicular sides is a triangle.
I suppose. All of a square's sides are perpendicular.
Yes.
An irregular hexagon.
Trapizium
A trapezoid has at least one pair.