The length of one side of the rectangle is 4 cm, the other is 3 cm less. Find the perimeter of this rectangle.

1. According to the data presented in the problem statement, the length of the first side of the rectangle is 4 cm.

2. Determine what is the length of the second side of this rectangle, if we also know that it is 3 cm less than its first side. To do this, the length of the first side must be reduced by the specified 3 cm. This can be done using the subtraction action. We get the following result:

4 – 3 = 1 cm.

3. Next, find out what the perimeter of this rectangle is equal to by adding the lengths of its sides.

4 + 4 + 1 + 1 = 10 cm.