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Becky visited the Great Pyramid of Giza. She learned that the pyramid was originally 481 feet tall and its square base had sides measuring 751 feet in length. Becky wants to know the volume of the pyramid. What is the volume of the pyramid?

 

A) 1.2 x 10^5 ft^3

B) 4.5 x 10^7 ft^3

C) 3.6 x 10^5 ft^3
D) 9.0 x 10^7 ft^3

pwolfey  Nov 2, 2017
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volume of pyramid  =  (1/3)(area of base)(height)

 

area of square base  =  751 * 751  ft2   =   564001  ft2       Plug this in for  area of base.

                                                                                            Plug in the height given in the problem.

volume of pyramid  =  (1/3)(564001 ft2)(481 ft)                   Multiply these together.

 

volume of pyramid  ≈  90 428 160   ft3

 

And    90 428 160   ≈   9.0 * 107

hectictar  Nov 2, 2017

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