square based triangle
triangular prism
The shape you are describing is a cylinder. A cylinder has two flat circular faces (the top and bottom) and one curved surface that wraps around the sides. It has no edges or vertices where flat surfaces meet, as the curved surface is continuous.
sphere.
A sphere
A cylinder
A cylinder
A cylinder would seem to fit the given description
The shape you are describing is a triangular prism. It has six vertices, nine edges, and five flat faces (two triangular faces and three rectangular faces). Additionally, it has no curved surfaces, as all its faces are flat.
a sphere, of course!
a cylinder l
Sphere * * * * * Not true. A sphere does have a curved face. A point has none.
Prism