Answer:
The approximate area is 35 square centimeters
Step-by-step explanation:
we know that
The cross section passing through the diagonal of opposite faces of the cube is a rectangle
so
the approximate area is equal to
[tex]A=bh[/tex]
where
b is the diagonal of a face
h is the length side of the cube
we have
[tex]b=7\ cm\\h=5\ cm[/tex]
substitute
[tex]A=7(5)=35\ cm^2[/tex]
