The side of the square is 8 cm. The sum of the sides of a rectangle whose length is 12 cm

The side of the square is 8 cm. The sum of the sides of a rectangle whose length is 12 cm is equal to the sum of all sides of the square. What is the width of the rectangle?

1. It is clear from the problem statement that the perimeter of the square is equal to the perimeter of the rectangle. Find the perimeter of a square by multiplying its side by 4:
Perimeter of the square = 8 cm * 4 = 32 cm.
2. Since the perimeter of the rectangle is also 32 cm, and its length is 12 cm, we find the width of the rectangle by subtracting its length from the semi-perimeter:
The width of the rectangle = 32/2 – 12 = 16 – 12 = 4 cm.
Answer: The width of the rectangle is 4 cm.