a cube
Sphere
There is no such 3-d shape if it also has flat faces.
A pyramid * * * * * Or it could be a triangular prism.
There are two 3D shapes with five faces: Triangular prisms and rectangular pyramids.
No 3D shape with FLAT SIDES has exactly 3 faces. 4 is the minimum.
a cube
Curved and flat faces.
Sphere
A cuboid
There is no such 3-d shape if it also has flat faces.
A cylinder
A triangular prism.
A pyramid * * * * * Or it could be a triangular prism.
There are two 3D shapes with five faces: Triangular prisms and rectangular pyramids.
A cuboid.
a 3D shape called a cylinder