有一个正四棱台形状的油槽,可以装油190L,假如它的两底面边长分别等于60cm和40cm,求它的深度.
人气:119 ℃ 时间:2020-05-31 19:00:42
解答
由于台体的体积V=
(S+
+S′)h,
则h=
=
=75cm.
故它的深度为75cm.
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