It is a circle whose lines of symmetry are infinite
A circle. It has an infinate amount of lines of symmetry.
Octagon
circle
A circle
Yes, most (non-regular) hexagons do not have lines of symmetry.
A circle or annulus. Each of its infinite number of diameters is an axis of symmetry. Plus there is the line through its centre and perpendicular to the plane of the circle.
It has at most one.
Any shape that contains a section of a plane can have an infinite number of parallel lines in it.
A circle, since it has an infinite number of lines of symmetry
In 2-d a circle, in 3-d a sphere.
Yes because it has infinite lines of symmetry.
Most parallelograms do not have any lines of symmetry. The only parallelograms that can have lines of symmetry are squares, rectangles, and rhombuses.