A cube is a three dimensional figure with all edges equal.
So it length = width = height
The formula to find the volume of a cube is
V = s³.
Here s represents the length of the cube.
In the given question we are given s = 4.2 inches
So the volume of the cube shall be
V = 4.2³
V = 4.2 × 4.2 × 4.2
V = 74.088 in³
Now this can be rounded off to 2 decimal places as 74.09in³
The volume of the required cube is 74.088 in³ 0r 74.09 in³