A circle
(There is no shape that exists which has only one side if you are not explicit in your wording. A circle has two sides: there is the outside and the inside. I would suggest reconsidering the phrasing of the question to exclude my answer, otherwise an intelligent person with a penchant for words will have to be given credit for answering none in response to the question as it stands.)
A line. Or a circle
Irregular shape is the term given to an object which has 1 flat side, 1 curved side, no corners but has curved edges.
A circle?
A shape that has 12 corners is called a dodecagon. This shape not only has 12 corners but alsoÊ12 sides.
The shape with 8 corners is called an octagon.
circle yes a circle
10 side shape i think
A vertical line
A sphere
a quadrilateral
I guess you could say that a Mobius strip is a one-sided shape. Or a circle, because there are no corners or divisions where another side starts.
I am a pop can I am a
A line. Or a circle
A mobius loop which has one side and just one edge, could be your answer. Otherwise, a straight line segment may be it?
2 side 2 corners and same lenght
A cylinder.
Points and corners are all vertices!