A cylinder, cone or half of a sphere
circle
A cylinder.
A semicircle is one shape fitting this description.
Its a sphere.
A right circular cone is perfectly balanced on its circular base. Imagine a cone that has a circular base, but leans to one side - this is a non right circular cone.
You are a cylindrical object with a circular base and a rectangular side
A shape with three linear sides and one curved side can be drawn, but such a shape has no specific name.
A cylinder.
circle
A two-dimensional shape with one curved side and four straight sides can be created, but there is not specific name for such a shape.
Irregular shape is the term given to an object which has 1 flat side, 1 curved side, no corners but has curved edges.
A cone
A cylinder.
a semi circle.. (:
In a right circular cone the base is a circle and the sloped side is a sector of a circle. For a general cone, they are an ellipse and a sector of an ellipse.
A semicircle is one shape fitting this description.
If you look down from the top, it is circular. From the bottom, it is circular. From the side, it is a triangle.