Every single kind of ball.
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cylinder, cube, cone, sphere, rectangular solid, polyhedron
In mathematics, the term sphere defines only one shape, and every sphere has exactly the same shape. Of course, in the real world spheres are imperfect, so they all actually have different shapes, if only slightly different. On the quantum level, sphere are uncertain (like everything else) so you can't be completely sure what shape they actually have.
The radius of a sphere is equal distance from the center of the sphere to all points within the sphere.
Sphere is one syllable: sphere.
there are parts of a sphere!!