The area of a rectangle, one side of which is 4cm is equal to 36cm. Find its perimeter.

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

1) 36: 4 = 9 centimeters – the length of the second side of the rectangle, since its area is 36 cm ^ 2, and the length of the first side is 4 centimeters;

2) 2 * (9 + 4) = 2 * 13 = 26 centimeters – the perimeter of a rectangle with sides of 9 centimeters and 4 centimeters.

Answer: 26 centimeters.