a circle is a circle - no sides at all
a semi-circle
A 10 sided polygon is a decagon
Pentagram
Pretty damned close to a circle.
A 10-sided polygon is a decagon. A 12-sided polygon is a dodecagon.
A circle cannot have 10 sides, it has only one, uniformly curved side.
a circle
Circle
There is no such thing as a 1 sided shape nor a two sided shape.
A 9-sided "circle" is an nonagon or enneagon.
a circle
A circle!
Circle.
a circle
a circle
A circle
circle