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有一段圆柱形木料,高8分米,如果沿底面直径把它垂直锯开,这样表面积比原来增加了64平方分米,求这段木
有一段圆柱形木料,高8分米,如果沿底面直径把它垂直锯开,这样表面积比原来增加了64平方分米,求这段木
2025-03-17 00:04:01
推荐回答(1个)
回答1:
64÷2÷8
=32÷8
=4(分米)
3.14×(4÷2)
2
×8
=3.14×4×8
=100.48(立方分米).
答:这段木料的体积是100.48立方分米.
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