Answer: 81 m^2
Step-by-Step Explanation:
No. Of Square Wallpapers = 9
Side Length (s) = 3 m
Area of 1 Square Wallpaper = s * s
Therefore,
= s * s
= 3 * 3
=> 9
Area of 1 Square Wallpaper = 9 m^2
Area of Wall = Area of 9 Wallpapers
= 9 * 9
=> 81
Area of Wall = 81 m^2
