Calculate the perimeter of a rectangle whose adjacent sides are 5cm and 1dm long, 3m and 2m long.

The perimeter of a rectangle is the sum of the lengths of all its sides.
Determine the perimeter for a rectangle with sides of 5 cm and 1 dm. For convenience, we will convert decimeters to centimeters. 1 dm = 10 cm.
Let’s define the perimeter of the rectangle:
P = 5 +10 + 5 + 10 = 30 centimeters.
Let’s define the perimeter for a rectangle with sides of 3 m and 2 m:
P = 3 + 2 + 3 + 2 = 10 meters.
Answer: the perimeters of the rectangles are 30 cm and 10 m, respectively.