Find Volume and Surface Area of Tube Shape Donut
Online calculator helps to calculate the subwoofer vent minimum port diameter or size based on maximum air volume, tuning frequency, number of ports.
Formula:
Surface Area = 4π2Rr
Volume = 2π2Rr2
Where,
R = Major Radius
r = Minor Radius
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Surface Area = 4π2Rr
Volume = 2π2Rr2
Where,
R = Major Radius
r = Minor Radius
Formula:
Surface Area = 4π2Rr
Volume = 2π2Rr2
Where,
R = Major Radius
r = Minor Radius
Surface Area = 4π2Rr
Volume = 2π2Rr2
Where,
R = Major Radius
r = Minor Radius
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