筱桐 asked in 科學其他:科學 · 1 decade ago

圓容積(換算加侖)

半徑不知道,但深度為800mm,需算出容積為80加侖時的半徑為多少??

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  • 1 decade ago
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    因為您沒提供是美式單位還是英式單位

    思瑜就以美式: 1 gallon = 3.78533 litres 計算

    1 litre = 1000² mm³

    V = πr²h

    80 * 3.78533 * 1000² = πr² * 800

    r² = 378533/π

    r ≒ 347.12

    因此, 半徑大約為 347.12 mm

    http://tw.myblog.yahoo.com/jw!JCVbjQyaBRbXTWOakinc...

    Source(s): 思瑜的部落格
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