Answer:
Option D, 36 cm squared
Step-by-step explanation:
Step 1: Determine the area of the total rectangle
[tex]A = w * l[/tex]
[tex]A = 12\ cm * 5\ cm[/tex]
[tex]A = 60\ cm^2[/tex]
Step 2: Determine the area of the inner rectangle
[tex]A = w * l[/tex]
[tex]A = 8\ cm * 3\ cm[/tex]
[tex]A = 24\ cm^2[/tex]
Step 3: Subtract the inner rectangle from the total rectangle
Gray region → [tex]60\ cm^2 - 24\ cm^2[/tex]
Gray region → [tex]36\ cm^2[/tex]
Answer: Option D, 36 cm squared
