(a yin-yang is the religous symbol for Confuciousism and Daoism; it also represents the balance of good and evil.)
baseball field
Boxes
coat hangers
A door Box Table
The roof of a house,
None, but we have a couple square-shaped.
There are various reasons that manholes are shaped like a circle. For example, it is much easier to dig a circular hole.
"Circular", meaning shaped like a circle.
it was a circle
you mean animal cells?
A closed semi-circle.
A circle perhaps
Circle shaped looking bacteria.
A stop sign is shaped like a hexagon
eclipse
O circle $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Well the shape looks a lot like a circle spiral...