It has no vertices.
It has the least surface to volume ratio.
It has infinite axes of symmetry.
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a Sphere is a 3d circle
A sphere is a 3D shape. Here are some sphere facts: * A sphere has one face which wraps around the whole of it's shape. * A sphere is the 3D equivalent of a circle. * A sphere has no vertices or edges. CK x
Every sphere is 3D. It's said to be "spherical" in shape.
cube, cuboid, prism, sphere, cone, pyramid .....
None. And when you find a sphere which is not 3d I would like to know.