Question 149168
First, let's find the volume of one stone block:


{{{V=l*w*h}}} Start with the volume of a rectangular block equation



{{{V=7*7*15}}} Plug in l=7, w=7, and h=15



{{{V=735}}} Multiply


So the volume of one stone block is 735 cubic feet.





Now let's find the volume of the pyramid:


{{{V=(1/3)b*h}}} Start with the volume of a pyramid equation


Since the base is 756 feet, this means that the area of the base is {{{756*756=571536}}} square feet.


{{{V=(1/3)b*h}}} Start with the volume of a pyramid equation


{{{V=(1/3)(571536)*(483)}}} Plug in {{{b=571536}}} and {{{h=483}}}



{{{V=92017296}}} Multiply



So the volume of the entire pyramid is 92,017,296 cubic feet.



Now to find out how many blocks are needed to construct the pyramid, simply divide the volume of the pyramid by the volume of one block like this


{{{92017296/735=125193.6}}}


So rounding up, we need about 125,194 blocks to construct the pyramid.