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A sphere is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball.
Area = 4 * π * radius3
A = 4 * π * r3 =
Use the citation below to add this Sphere to your bibliography:
"Sphere" Math @ STANDS4. STANDS4 LLC, 2019. Web. 18 Apr. 2019. <http://math.stands4.com//calculators/sphere-volume>.