题目内容：

把两块棱长为2.6分米的正方体木块粘成一个长方体,这个长方体的体积和表面积各是多少

优质解答

体积:V长=abh=(2.6+2.6)×2.6×2.6=5.2×2.6×2.6=13.52×2.6=35.152(dm3)表面积:S=2(ah+bh+ab)=2×[(2.6+2.6)×2.6+2.6×2.6+(2.6+2.6)×2.6]=2×[5.2×2.6+2.6×2.6+5.2×2.6]=2×[13.52+13.52+13.52]=2×[27.04+1...