把一个高为2cm的橡皮泥圆柱,捏成一个髙为1cm的圆锥,圆柱的底面积是圆锥底面积的几分之几
人气:127 ℃ 时间:2019-10-02 07:46:11
解答
1/6是正确的
圆柱体积1,圆锥体积1,
圆柱高2,圆锥高1,
圆柱底面积:1÷2=1/2,
圆锥底面积:1÷1/3÷1=3,
圆柱的底面积是圆锥底面积的:1/2÷3=1/6
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