Answer:
Feet
Meters
Step-by-step explanation:
Here, we want to get the appropriate units for describing the perimeter of a shape
The perimeter is just the addition of the lengths of the sides
The unit of the perimeter is same as the unit of the length of the sides that are added
Now, let us look at the options:
Cubic millimeters is about volume and thus cannot be correct
Square kilometers talk about area and cannot be correct
Square inches also talk about area and thus cannot be correct
Feet is correct as length can be measured in feet
Meters is correct as length can be measured in meters
Cubic centimeters talk about volume and thus cannot be correct