One side of the rectangle is twice the size of the other side. find the area of a rectangle if the perimeter is 54.

In order to find the sides of a given rectangle, let’s make an equation.

Let x cm be the value of the width of the given rectangle;

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

We also know that the perimeter of this rectangle is 54 cm, we compose an equation of the following form:

x + x + 2 * x + 2 * x = 54;

6 * x = 54;

x = 54: 6;

x = 9.

9 cm – the width of this rectangle;

2 * 9 = 18 cm – the length of this rectangle4

Find the area of ​​this rectangle, for this you need to multiply the value of the width of this rectangle by the value of the length of this rectangle:

9 * 18 = 162 cm2 – the area of ​​this rectangle.

Answer: 162 cm2 is the area of ​​this rectangle.