Answer :
Generally, if a unit square is 1 x 1 (1 square unit), you can draw the following rectangles to get a perimeter of 10 centimeters:
1 square height, 4 squares width
2 squares height, 3 squares width
3 squares height, 2 squares width
4 squares height, 1 square width
1 square height, 4 squares width
2 squares height, 3 squares width
3 squares height, 2 squares width
4 squares height, 1 square width