一个圆锥的体积是1884立方分米,它的底面直径是30分米,它的高是多少分米?
人气：489 ℃ 时间：2019-10-24 12:35:18
解答
底面直径是30分米,半径=30/2=15分米
体积=1/3*3.14*15*15*高=1884
高=3*1884/(3.14*15*15)=8分米
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