Pyramid of Giza

The Great Pyramid of Giza has the shape of a regular quadrangular pyramid. The base edge is 227 m long and 140 m high. What is the weight of the stone needed to build this pyramid, if the weight of 1 m3 of stone is 2.5 t?

Correct answer:

m =  6011717 t

Step-by-step explanation:

a=227 m h=140 m ρ=2.5 t/m3  S=a2=2272=51529 m2  V=13 S h=13 51529 1402404686.6667 m3  m=ρ V=2.5 2404686.6667=6011717 t

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