Question
The figure is not drawn to scale. 100 5-cm cubes are placed layer by layer into a tank with a base area of 21 cm by 15 cm. What is the height of the cubes when all the cubes are stacked up into the tank?
2 m

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The figure is not drawn to scale. 100 5-cm cubes are placed layer by layer into a tank with a base area of 21 cm by 15 cm. What is the height of the cubes when all the cubes are stacked up into the tank?