When you say "What face" did you mean "What solid" has one curved face and two other flat faces? A solid that can be imagined is a melon wedge, cut from a sphere. Two flat faces come from the two cuts with a knife, and the one curved face that formed the rind. If you did not mean "What solid" then that makes your question unclear. I cannot imagine a face made from three other faces. Perhaps a face made from three other lines with one of them curved? It would seem you used a word wrong somewhere in your original question.
A contradiction. A solid is a 3-dimensional object, a face is 2-dimensional. Hence you cannot have a solid face.
It has one flat face if its 2 dimensional. It has 6 flat faces if it is 3 dimensional.
cylinder
..... 2 opposite parallel flat faces
A cylinder would fit the given description.
When you say "What face" did you mean "What solid" has one curved face and two other flat faces? A solid that can be imagined is a melon wedge, cut from a sphere. Two flat faces come from the two cuts with a knife, and the one curved face that formed the rind. If you did not mean "What solid" then that makes your question unclear. I cannot imagine a face made from three other faces. Perhaps a face made from three other lines with one of them curved? It would seem you used a word wrong somewhere in your original question.
A contradiction. A solid is a 3-dimensional object, a face is 2-dimensional. Hence you cannot have a solid face.
It has one flat face if its 2 dimensional. It has 6 flat faces if it is 3 dimensional.
A cone?
cylinder
3d shape* * * * *It does not.A face is a plane (2-dimensional) part of the surface of a solid (3-dimnsional) object. Sometimes the term is includes curved surfaces, such as along the length of a cylinder.
A cylinder. Technically, the curved surface of a cylinder is not called a face, only the flat surfaces, so a cylinder has 2 faces and one curved surface.
A Cylinder
cylinder
..... 2 opposite parallel flat faces
circle