sphere
One if it is solid, two if it is hollow
none its a sphere just look at one and you can tell
The section of a cone or sphere or ellipsoid or paraboloid slice by two planes.
A sphere has one surface that's also curved and has no base.
semi-sphere
A sphere.
a sphere or an ellipsoid.
sphere
a sphere :)
Sphere
sphere
A sphere has a single face, one surface. A sphere has no corners. Or if you want to think about it from another perspective - a sphere has an infinity number of sides allowing for the curved surface.
sphere
Sphere * * * * * Not true. A sphere does have a curved face. A point has none.
Sphere
A sphere, an ellipsoid, a toroid are some examples.