Question

what is the area of square cdef? area = square units

Explanation:

Step1: Determine side - length of square

Count the number of grid units between two adjacent vertices. For example, between points C(-9, 2) and F(-6, 2), the horizontal distance (side - length of the square) is $|-6-(-9)| = 3$ units.

Step2: Apply area formula for square

The area formula for a square is $A = s^2$, where $s$ is the side - length. Here, $s = 3$, so $A=3^2=9$.

Answer:

9