Any shape with straight edges can have perpendicular edges.
a circleA pedantic edit:Also an ellipse or a wriggly loop.Any shape that has no straight edges is described as a curvilinear shape.
A triangular pyramid has 6 edges.
Oval
A shape with no straight edges that can be described as looking like 'a squashed circle' is called an ellipse. This shape is also sometimes referred to as an oval.
Any shape with straight edges can have perpendicular edges.
a circleA pedantic edit:Also an ellipse or a wriggly loop.Any shape that has no straight edges is described as a curvilinear shape.
Every shape that is round does not have edges. A shape that has sharp points and has straight lines can have edges.
Overall
An ellipse is a shape that could be described as looking like 'a squashed circle.' With no straight edges, this shape is also called an oval.
hexagon
An Octagon
A pentagon
hexagon
Polyhedra.
octagon !
A triangular pyramid has 6 edges.