Question

what is the perimeter of square ghij? perimeter = units

Explanation:

Step1: Determine side - length

Count the number of grid units between two adjacent vertices. For example, between $G(-8,-7)$ and $H(-8,9)$, the vertical distance is $|9 - (-7)|=16$ units. Since it's a square, all sides are equal.

Step2: Calculate perimeter

The formula for the perimeter $P$ of a square is $P = 4s$, where $s$ is the side - length. Here, $s = 16$. So $P=4\times16$.
$P = 64$

Answer:

64