complete the serie?

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2r, 2Pi*r, Pi*r^2, 4Pi*r^3/3, ????

2007-06-14 08:58:14 · 5 answers · asked by raja 2 in Science & Mathematics ➔ Mathematics

It should be either 4pi*r^2 i.e. the surface area of sphere or (2pi*r^3)/3 i.e. the volume of hemisphere

2007-06-15 04:25:26 · answer #1 · answered by niti 2 · 0⤊ 0⤋

Shouldn't the first one be 2pi? By integration, I believe the answer is (Pi*r^4)/3.

2007-06-14 16:05:31 · answer #2 · answered by Willis T 2 · 0⤊ 0⤋

Those are diameter, circumference, and area formulas for a circle or sphere. The one you're missing is the surface area of a sphere, 4Pir^2.

2007-06-14 16:12:34 · answer #3 · answered by A M Frantz 7 · 0⤊ 0⤋

pi*r^3?

2007-06-14 16:05:49 · answer #4 · answered by dboydahustla 2 · 0⤊ 0⤋

can i get that in english

2007-06-14 17:42:43 · answer #5 · answered by askannie123 2 · 0⤊ 0⤋