(会几个答几个!)填空题1.一个圆柱体的侧面积是628cm²,高是20cm,这个圆柱体的表面积是( )cm²,体积是( )cm³.2.一个圆柱体,如果把它的高截短6cm,表面积就减少75.36cm²,体积减少
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