If you draw a circle (or something approximating a circle)on a surface, it will be two-dimensional. The two dimensions will be theheight and width of the circle.
In essence, however, a circle is just an abstract concept. In that sense, it does not actually have any dimensions.
Chat with our AI personalities
A semi-circle is a two dimensional shape.
Because it has no thickness
Some two-dimensional shapes: square triangle rectangle diamond circle trapezoid
Two. Considering this is a two-dimensional object, cut out of a piece of paper it would have two flat surfaces, the front and the back. If your talking a about a sphere, the three-dimensional object of a circle, it has no flat surfaces considering it is round.
A sphere is indeed a three dimensional shape. It is a circle rotated about an axis several times to create and three dimmensional object from a two dimensional shape.