Because each side of the cube is a square, you can find the area of one side, and multiply it by the number of sides on the cube. The area of a square is A = s², where s is the length of one side of the square The length of one side is 5, so A = 5² A = 25 The area of one side of the cube is 25sq.cm. Now, you multiply that by 6 sides. 25 x 6 = 150 The total surface area of the cube is 150 square centimeters.
