Question

what are the area and perimeter of square ghij?
area = $square$ square units
perimeter = $square$ units

Explanation:

Step1: Find side length of square

Use coordinates of $H(-8,10)$ and $I(4,10)$.
Length $HI = |4 - (-8)| = 12$ units

Step2: Calculate area of square

Area formula: $\text{Area} = s^2$, where $s=12$.
$\text{Area} = 12^2 = 144$

Step3: Calculate perimeter of square

Perimeter formula: $\text{Perimeter} = 4s$, where $s=12$.
$\text{Perimeter} = 4 \times 12 = 48$

Answer:

Area = 144 square units
Perimeter = 48 units