trapazoid
Any shape, other than a triangle can have a pair of perpendicular sides.
trapezoid
It could be a right angle triangle
It fits the description of a right angle triangle
shape no pairs of perpendicular sides
The first geometric shape that comes to mind with no perpendicular sides is a triangle.
trapazoid
An irregular hexagon.
Trapizium
[object Object]
Any shape, other than a triangle can have a pair of perpendicular sides.
a trapazoid
trapezoid
The question contradicts itself. A dodecagon need not have any perpendicular sides.
It could be a right angle triangle
It fits the description of a right angle triangle