Answer:
[tex]A_{white} = 119\ cm^2[/tex]
Step-by-step explanation:
Step 1: Determine the area of the black area
[tex]A = l * w[/tex]
[tex]A = 8\ cm * 2\ cm[/tex]
[tex]A = 16\ cm^2[/tex]
Step 2: Determine the area of the entire white and black area
[tex]A = l * w[/tex]
[tex]A = 9\ cm * 15\ cm[/tex]
[tex]A = 135\ cm^2[/tex]
Step 3: Determine the difference to just get the white area
[tex]A_{white} = 135\ cm^2 - 16\ cm^2[/tex]
[tex]A_{white} = 119\ cm^2[/tex]
Answer: [tex]A_{white} = 119\ cm^2[/tex]
