Build two rectangles, one with sides 4 cm 3 mm and 5 cm 7 mm, and the other with sides 3 cm 6 mm

Build two rectangles, one with sides 4 cm 3 mm and 5 cm 7 mm, and the other with sides 3 cm 6 mm and 5 cm 4 mm. How much is the perimeter of one rectangle larger than the perimeter of the other rectangle?

We translate the length and width of the rectangles into centimeters:
4 cm 3 mm = 4.3 cm
5cm 7mm = 5.7cm
3cm 6mm = 3.6cm
5cm 4mm = 5.4cm
Perimeter of one rectangle:
2 ⋅ (4.3 cm + 5.7 cm) = 2 ⋅ 10 cm = 20 cm.
Perimeter of another rectangle:
2 ⋅ (3.6 cm + 5.4 cm) = 2 ⋅ 9 cm = 18 cm.
Perimeter Difference:
20 cm – 18 cm = 2 cm.
Answer: the perimeter of one rectangle is 2 cm larger than the perimeter of the other rectangle.