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 81.
You can find the perimeter of the square by Taking the square root of 81 and then multiply 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 125.
The difference between squaring and cubing a number is Squaring has 2 factors of the base and cubing has 3 factors of the base.