The length of the rectangle is 9 cm, the width is 3 times less. Calculate the perimeter and area of the rectangle.

Let’s solve this task by steps with explanations and explain each of them in detail.

1) 9: 3 = 3 centimeters – the width of the rectangle, since it is 3 times less than the length of the rectangle, and the length is 9 centimeters;

2) 2 * (3 + 9) = 2 * 12 = 24 centimeters – the perimeter of a rectangle with a length of 9 centimeters and a width of 3 centimeters, since the perimeter is the sum of the lengths of all sides;

3) 3 * 9 = 27 cm ^ 2 is the area of ​​a rectangle with a length of 9 centimeters and a width of 3 centimeters, and the area is the product of width and length.

Answer: the perimeter of the rectangle is 24 centimeters; the area of ​​the rectangle is 27 cm ^ 2.