The rectangle consists of three squares, the perimeter of the square is 12cm, find the area of the rectangle.

The number of squares is odd. The only way to make a rectangle with an odd number of squares is to line them up.

The perimeter of the square is known. Let’s find his side.

a = P / 4 = 12/4 = 3 cm.

The area of a rectangle is equal to the product of the length of the rectangle, which is three times the length of the side of the square, and the value of its width, which is equal to the side of the square.

S = (3 * a) * a = 3 * a ^ 2 = 27 cm².