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Question by  mrbixby (35)

# In calculus, how do I find the volume of a torus?

 +1 vote! +5 you voted Answer by  Clement (1453) Let R be the distance from the centre of the tube to the centre of the torus, and let r be the radius of the tube. Then, the volume of the torus is equal to 2*pi^2*r^2*R. Similarly, the surface area of a torus is given by 4*pi^2*R*r.

 +1 vote! +4 you voted Answer by  worker2376 (42) The best way would be to use Pappus Theorem for the volume of a solid of revolution. You can look it up in a calculus text.

 +1 vote! +4 you voted Answer by  Diddum (348) Let R = distance from the center of the tube to the center of the torus, r = radius of the tube. Then volume = (2*Pi*R)*(r^2*Pi)

 +1 vote! +2 you voted Answer by  copernicus (13) If radius of the tube = r and distance from the center of the taurus to the middle of the tube = R, V=(pi*r*r)*(2*pi*R)

 +1 vote! +0 you voted Answer by  Anonymous but

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