One side of the rectangle is twice the size of the other and its perimeter is 72 which is equal

One side of the rectangle is twice the size of the other and its perimeter is 72 which is equal to the larger side of the rectangle.

In order to find the sides of a given rectangle, we will compose an equation.

Let x cm be the width of the given rectangle;

Then 2 * x cm is the value of the length of this rectangle;

It is also known that the perimeter of this rectangle is 72 cm, we will compose an equation of the following form:

x + x + 2 * x + 2 * x = 72;

6 * x = 72;

x = 72: 6;

x = 12.

12 – the width of this rectangle;

2 * 12 = 24 cm – the length of this rectangle.

Answer: 24 cm is the length of the longer side of the rectangle.