A cone would fit the given description
A triangle with a circular base
A point. Other shapes may not have straight sides but that does not mean that they do not have sides.
A cylinder would seem to fit the given description that has circular parallel bases and a rounded body.
Polygons are shapes with three sides or more. Circular shapes are NOT polygons.
It is a point where two sides of the shape meet.
No, it is not. For a cone, think of a standard ice-cream cone shape (or a witches hat) - a circular top OR base (but not both), which has sides coming off that taper into a point. Whereas a cylinder has a circular top AND base, (like the shape of baked bean cans), with sides joining both top and base.
A triangle with a circular base
In its conventional form, of a circular shape with tapering sides, NO.
A cylinder is a 3-D shape with a circular bottom and vertical sides
Its 4th side would have to be circular in order to comply with the given requirements.
A point. Other shapes may not have straight sides but that does not mean that they do not have sides.
A cylinder would seem to fit the given description that has circular parallel bases and a rounded body.
A point, line or curve.
Polygons are shapes with three sides or more. Circular shapes are NOT polygons.
Ripples are circular in shape because of the way energy spreads out in a fluid medium, like water. When a disturbance is created in the water, the energy moves outward in all directions, causing the circular pattern of ripples. This circular shape is a result of the equal distribution of energy around the point of disturbance.
It is a point where two sides of the shape meet.
vertex