Question 965523
{{{Volume = (1/3)(base_ area)(height)}}} 

given:
the length of a side of the base of the pyramid is {{{35.42m}}}
since the base is a square, the base area is {{{35.42m*35.42m=1254.5764m^2}}}

a height of {{{21.64m}}}

then {{{Volume = (1/3)(base_ area)(height)}}} will be:

{{{Volume = (1/3)(1254.5764m^2)(21.64m)}}} 

{{{Volume = (1/3)27149.033296m^3}}} 

{{{Volume = 9049.677765333333m^3}}} 

{{{Volume = 9049.68m^3}}}

so, the answer is C.{{{9049.68m^3}}}