因为长方体的底面是周长为8分米的正方形,所以它的底面边长是2dm
表面积:(2×2+2×7.5+2×7.5)2=68平方分米
体积:2×2×7.5=30立方分米
一个长方体的底面是周长为8分米的正方形,它的高是7.长方体的表面积是多少平方分米?体积是多少立方分米?
一个长方体的底面是周长为8分米的正方形,它的高是7.长方体的表面积是多少平方分米?体积是多少立方分米?
数学人气:807 ℃时间:2019-09-29 04:41:11
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