Question

someone plz help me !
A cube has numerically equal to volume and surface area. the volume of such a cube is
a) 216 units
b) 1000 units
c) 2000 units
d) 3000 units

Answer 1

Let e=the dimension for the edge of a cube, then
\[e ^{3}=6e ^{2}\]This states the problem, volume = surface area
\[e ^{3}-6e ^{2}=0\]\[e ^{2}(e-6)=0\]
e=6

Answer 2

Now determine volume of the cube: 6 X 6 X 6 =216 cubic units