The perimeter of the rectangle is 16 cm. The length of the rectangle is 5 cm. Find the area of this rectangle.

Since we know the perimeter of the rectangle, we can find the sum of its length and width, for which we divide the known perimeter in half. So, we get:

16: 2 = 8 (cm).

Now let’s calculate what the width of this rectangle is equal to by subtracting the length of the rectangle from the found sum:

8 – 5 = 3 (cm).

Let’s calculate the area of a given rectangle, for which we multiply its length by its width:

S = 5 * 3 = 15 (cm²).

Answer: the area of the rectangle is 15 cm².