Ring volume 、area online Calculator tool
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Ring volume formulas ： V = π2 * (R + r) * (R - r)2 Circular formulas: S = PI 2 * (R 2 - R 2 ) Here R: outside radius r：Internal radius |
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Ring volume formulas ： V = π2 * (R + r) * (R - r)2 Circular formulas: S = PI 2 * (R 2 - R 2 ) Here R: outside radius r：Internal radius |