The perimeter of the rectangle is 48 cm. Find the area of the rectangle if its width is 3 times less than its length.

In order to find the area of a rectangle, we need to find out what its sides are equal to.

Let’s take the length of the first side of the rectangle as x cm.

Since the second side is 3 times larger, therefore it will be equal to 3 cm.

Let’s make an equation and find out what the first side of the rectangle is equal to if its perimeter is 48 cm.

x + x + 3x + 3x = 48;

8x = 48;

x = 48/8;

x = 6 cm.

Now let’s find out what the second side of the rectangle is.

6 * 3 = 18 cm.

Now let’s calculate the area of this rectangle.

6 * 18 = 108 cm ^ 2.

Answer: The area of the rectangle is 108 cm ^ 2.