It depends on the cube.
an inch
A cube has a volume of 729 in3. What is the surface area of the cube?
1/8th of a cubic inch
1 litre would be a cube with each edge of length 1 decimetre = 10 centimetres. If you are only able to visualise imperial measures, that is a cube with approx 4 inch edges.
That would be a cube with 4 inch sides
an inch
A cubic inch is one inch, by one inch, by one inch. -Visualise a square box, an inch each side.
125 of them.
-6
Multiply the length by the width and divide by 144, which is the inch to feet ratio squared.
A cube has a volume of 729 in3. What is the surface area of the cube?
1/8th of a cubic inch
1 litre would be a cube with each edge of length 1 decimetre = 10 centimetres. If you are only able to visualise imperial measures, that is a cube with approx 4 inch edges.
That would be a cube with 4 inch sides
12 along each edge.
A cube is a 3 dimensional object and like a box it has 6 sides. Let's use square sides to construct our cube. each side is 2x2 inches or 4 sq. inches per side and are themselves 2 dimensional. We have 6 x ( 4 sq. inch sides) that make up the cube or 24 sq. inches. of surface area ( still 2 dimensional ). To derive the volume which is 3 dimensional we simply multiply the edge of one of the 6 equal sides by itself 3 times. Edge x edge x edge. Substituting 2 inches for one edge, we get: 2in x 2in x 2in = 8 cubic inches. The surface area is 24 sq inches. The ratio of surface area to volume in our example is: 24 sq. inches / 8 cubic inches. further reducing terms 24/8 results in 3 sq. inches for each cubic inch of cube. { dimension's: inch, sq. inch, cubic inch. }
the ratio of the length of this sides is 1:2.