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the great pyramid of khufu in egypt has square base measuring 756 feet on a side and a height of 481 feet. The stones used to build the great pyramids were limestone blocks with an average of volume of 40 cubic feet. How many of these blocks were needed to construct the great pyramid? round to the nearest whole number.

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sqdancefan

Answer:

  2,290,907

Step-by-step explanation:

You want to know the number of 40 ft³ stone blocks required to construct the Great Pyramid, which has a base that is 756 ft square and a height of 481 ft.

Volume

The volume of the pyramid is given by ...

  V = 1/3b²h . . . . . . b is the length of one side, h is the height

Blocks

Dividing this volume by the volume of a block tells you the number of stone blocks required:

  blocks = (1/3)(756 ft)²(481 ft)/(40 ft³/block) ≈ 2,290,907 blocks

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