If the length of the rectangle is 12cm and the width is one third of the length, then the area of the rectangle is …

If the length of the rectangle is 12 cm and the width is one third of the length, then to find the width, it is enough to divide the length by three or multiply by one third.
In order to find the area of a rectangle, it is necessary to multiply the length by the width, the area of the rectangle is calculated by the formula S = a * b.
12: 3 = 4 (cm) width of the rectangle;
12 * 4 = 48 (cm ^ 2) area of the rectangle;
1) 12 * 1/3 = 4 (cm) width of the rectangle;
2) 12 * 4 = 48 (cm ^ 2) area of the rectangle.
Answer: 48 square centimeters is the area of a rectangle.