A sphere intersected by a plane, which could be a hemisphere.
Alternatively, a cone, or a paraboloid.
A Cone
A cone.
a 3D shape called a cylinder
A cylinder perhaps
A cone.
A Cone
A cone.
a 3D shape called a cylinder
A cylinder perhaps
A cone.
A cylinder or a frustrum of a cone.
a cylinder
If you have one flat face and I have one curved face, which one of us is the 3d shape? Anyway, a 3d shape with pne f;at, circular face and one curved face could be: a section of a sphere or a section of an ellipsoid cut by a plane parallel to one of its axes, a section of a paraboloid or a cone. There are probably other shapes.
A hemisphere
The shape described has two flat faces, one curved face, and two edges. It could be a cylinder or a cone with a circular base.
acylinder
perabale