Given:
Area of each square = 4 square feet
Given that each rabbit requires 2.5 square feet of space.
Let's determine the measure needed for the number of rabbits the pen can hold.
Here, we can see that each square represents 4 square feet.
This means the area of the square is 4 square feet.
Also, each rabbit requires 2.5 square feet of a space.
This means that each rabbit requires an area if 2.5 square feet.
To determine the number of rabbits the pen can hold, we need to find the area of of the pen and divide by the area required by each rabbit.
Therefore, the measure needed is the Area.
ANSWER:
Area