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a cone is like an upside down ice cream cone. and a cylinder is like a glue stick. both have at least one plane and several edges.
No. A polygon is a plane figure - i.e. it is 2-dimensional A cone is a solid figure - i.e it is 3-dimensional
A cylinder and a cone have infinitely many planes of symmetry because of the circular face. However, a cylinder can also be cut in half lengthwise (imaging cutting a soda can in half), while a cone cannot (imagine cutting a ice cream cone in half). Therefore, a cylinder has one more plane of symmetry than a cone.
A circle is a two-dimensional figure, where the cylinder and cone are three-dimensional.
the figure defined by intersection of a cone and a plane.