Find the perimeter of a rectangle with sides 27 meters and 13 decimeters.

1. According to the data presented in the problem statement, the length of one of the sides of the rectangle is 27 meters.
2. According to the condition of the problem, the length of the second side is 13 decimeters. Since 1 meter = 10 cm, therefore: 13 dm = 1.3 meters.
3. Let’s calculate what the perimeter of the given rectangle is. To do this, we need to add the lengths of all sides of this rectangle, we get:
P = 27 + 27 + 1.3 + 1.3 = 56.6 meters or 566 decimeters.
Answer: The perimeter is 56.6 m or 566 dm.