The sides of the rectangle ABCD are 12 cm and 9 cm. It was divided into a square and a rectangle.

The sides of the rectangle ABCD are 12 cm and 9 cm. It was divided into a square and a rectangle. Calculate the areas and perimeters of the resulting shapes.

1. Let’s define the area of the square.

9 * 9 = 81 cm².

2. Find out its perimeter.

9 * 4 = 36 centimeters.

3. How many square centimeters is the area of a rectangle?

9 * 3 = 27 cm².

4. Find the value of the perimeter.

(9 + 3) * 2 = 24 centimeters.

Answer: 81 cm² and 36 centimeters. 27 cm² and 24 centimeters.