The perimeter of the rectangle is 28 cm. The length of one side is 2 cm less than the other. Find the area of a rectangle.

Let the length of one side of the rectangle be x cm, then the length of the second one is (x + 2) cm.The perimeter of the rectangle is calculated by the formula of the doubled product of the sum of its sides, that is, 2 * (x + x + 2) cm, which is equal to 28 see Received the equation:
2 * (x + x + 2) = 28;
2x + 2 = 28/2;
2x + 2 = 14;
2x = 14 – 2;
2x = 12;
x = 12/2;
x = 6.
So, one of the sides of the rectangle is 6 cm, then the second (6 + 8) = 14 cm.
Its area S is equal to the product of the lengths of the sides, then S = 6 * 14 = 84 cm square.
Answer: 84 cm square.