Question

有学霸知道这题怎么做吗，求解

Answer 1

请你把图片也发来，不然我做不到啊
那我先假设吧。
Assume that the height of the tank is 15 cm.
In order to completely cover the small cube, water of volume 10cm x 15cm x 8cm (height) is at least required.
But in the bottom of the tank had already placed a small cube with 8 x 8 x 8
Hence, the minimum volume of water needed to cover the cube is
(10 x 15 x 8) - (8 x 8 x 8) = 1200- 512
The answer you would get is 688.
望采纳。如果高度不是15的话，那有另当别论了。

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追答

已修改
Assume that the height of the tank is 15 cm.
The height of small cube is 2cm because 2 x 2 x2 is 8
In order to completely cover the small cube, water of volume 10cm x 15cm x 2cm (height) is at least required.
But in the bottom of the tank had already placed a small cube with 2 x 2 x 2
Hence, the minimum volume of water needed to cover the cube is
(10 x 15 x 2) - (8）= 300-8
The answer you would get is 292.
望采纳

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谢谢

Answer 2

10×15×2=300 cm³
300 - 8=292 cm³