a cone
a polygon
a ruler
A paraboloid.
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
Sphere
cube
A semicircle
A figure with 2 circular bases and one curved surface is called a cylinder. Examples are food cans.
isn't it called face?
the enclosing boundary of a curved geometric figure, esp. a circle. the distance around a circle
A square is a polygon because it is a closed geometric figure with line segments and no curved edges