1==3.14X6X6X2+3.14X12X16
2==3.14X2.5X2.5X2+3.14X5X20
3==3.14X9X9X2+3.14X18X15
计算下面各圆柱的表面积
计算下面各圆柱的表面积
(1)圆柱的高是16cm,底面直径是12cm
(2)圆柱的高是20cm,底面直径是5cm
(3)圆柱的高是15cm,底面直径是18cm
(1)圆柱的高是16cm,底面直径是12cm
(2)圆柱的高是20cm,底面直径是5cm
(3)圆柱的高是15cm,底面直径是18cm
数学人气:980 ℃时间:2020-02-01 08:19:48
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