Question 880992
I cannot even imagine a building that large.
 
We do not know the shape of the floor plan, but it does not matter.
Apparently the height of the building is the same at all points.
We can imagine that the building is shaped like a box, with a rectangular flooe plan, and a flat horizontal roof.
A floor surface area of 2 square kilometers could mean that the building is 2 kilometers long and 1 kilometer wide.
The volume of a box is calculated by multiplying length time width (to get the surface area of the base), and then multiplying times the height.
In this case,
(2 square kilometers)(height in kilometers) = 1 cubic kilometer
Without writing the units
{{{2(height)=1}}} so {{{height=1/2}}} or {{{height=0.5}}}
So the height of the building is
{{{1/2}}}{{{km}}} , or {{{0.5km}}} , or {{{500m}}} .
The building could look like this:
{{{drawing(350,200,-0.25,3.25,-0.3,1.7,
line(0,0.5,2,0.5),line(0,0,2,0),line(0,0,0,0.5),line(2,0,2,0.5),
line(0.6,1.366,2.5,1.366),line(0,0.5,0.6,1.366),line(2,0.5,2.5,1.366),
line(2,0,2.5,0.866),line(2.5,0.866,2.5,1.366),
locate(1.5,1.55,2km),locate(2.33,0.6,1km),locate(2.53,1.2,0.5km)
)}}}