A cone has one vertex, one edge, and one base.
A cone would fit the given description
circle
L shape
A cone !
A cone has one vertex and one edge.
A cone has one vertex, one edge, and one base.
How about a sphere as an example that fits the given description
A lenticular shape: the shape of a lens.
A cone would fit the given description
Conventionally, two faces, one edge and one vertex.
The Cone
circle
A cone
A teardrop-shape would have one vertex (the tip), one edge and one face
L shape
A ConeA cone.