2006-10-02 10:11:52 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
A 3-dimensional circle! A ball!
It's a round, solid object whose points on its surface are all an equal distance away from its center.
2006-10-02 10:13:44 · answer #1 · answered by I ♥ AUG 6 · 1⤊ 1⤋
A sphere is a perfectly symmetrical geometrical object. In mathematics, the term refers to the surface or boundary of a ball, but in non-mathematical usage, the term is used to refer either to a three-dimensional ball or to its surface.
Area = 4(pi)r^2
Volume = 4/3(pi)r^3
2006-10-02 10:15:25 · answer #2 · answered by merfie 2 · 0⤊ 0⤋
The Earth is in the shape of a sphere.
2006-10-02 10:15:14 · answer #3 · answered by The Riddler 1 · 1⤊ 2⤋
a three dimensionsional smooth round object devoid of any planes
2006-10-02 10:19:31 · answer #4 · answered by blankcanvas 3 · 0⤊ 0⤋
A round thing.
2006-10-02 10:18:46 · answer #5 · answered by songbird 6 · 0⤊ 1⤋