Step-by-step explanation: The reason why the answer is 1000cm is because a cube has all equal sides. So if one side is equal to 10, then that means all the other sides are also equal to 10. The formula to find the Volume of a cube is finding the measurment of one side and multiplying it by itself 3 times. Or you can use the formula they have given you V=I^3
In this case V means volume and I means the length of one side.
