1.一个圆锥的底面周长是28.26dm,它的高与底面直径相等.这个圆锥的体积是多少立方分米?
人气：438 ℃ 时间：2019-10-17 14:03:40
解答
高=底面直径=28.26÷3.14=9分米
底面半径=9÷2=4.5分米
体积=3.14x4.5²x9÷3=190.755立方分米
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