Let’s find the side of one of the two squares from which the rectangle was laid out; for this, the perimeter of the square must be divided by 4:
12: 4 = 3 cm – side of the square.
Since the rectangle was laid out from two identical squares, the width of the rectangle will be equal to the side of the square, and the length of the rectangle will be equal to two sides of the square:
3 cm – the width of the rectangle;
3 + 3 = 6 cm – the length of the rectangle.
Let’s find the area of the rectangle, for this we multiply the width of the rectangle by its length:
3 * 6 = 18 cm2 – the area of the rectangle.
Answer: 18 cm2 is the area of a rectangle.
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