用长6分米,宽4分米的铁板做圆柱形水桶的侧面,另外再用铁板做一个底,做成的圆柱形水桶的最大容积是?
人气：462 ℃ 时间：2020-04-13 23:33:55
解答
要么4作高,要么6作高.
相比之下,如果4作高,6是周长V=π（3/π）²×4=36/π（答案）
如果6作高,V=π（2/π）²×6=24/π
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