Draw a right angle corner, then add 4 more sides that are NOT right angles...
[object Object]
Hexagon
A hexagon with only one pair of parellel sides
The question contradicts itself. A dodecagon need not have any perpendicular sides.
shape no pairs of perpendicular sides
Yes, they can exist.
Draw a right angle corner, then add 4 more sides that are NOT right angles...
The first geometric shape that comes to mind with no perpendicular sides is a triangle.
Hexagon.
trapazoid
Trapizium
[object Object]
Any shape, other than a triangle can have a pair of perpendicular sides.
a trapazoid
trapezoid
Hexagon