You are given a square. If the area of the square is 81 in², you can find the length of one of the sides by taking the square root of the area.
You can find the perimeter of the square by multiplying the length of one side by 4.
You are given a cube. If the volume of the cube is 125 in³, you can find the length of one of the sides by taking the cube root of the volume.
The difference between squaring and cubing a number is that squaring raises a number to the power of 2 (n²), while cubing raises it to the power of 3 (n³).