Question

what is the perimeter of square defg?
perimeter = q units

Explanation:

Step1: Identify coordinates of vertices

$E(0, -4), D(5, -4), G(5, -9), F(0, -9)$

Step2: Calculate side length

$\text{Length of } ED = |5 - 0| = 5$

Step3: Compute square perimeter

$\text{Perimeter} = 4 \times 5 = 20$

Answer:

20 units