Question

a wall of square shape is covered by 9 identical square wallpapers. if each wallpaper is of side length 3 m, then find the area of the wall.

Answer 1

Answer: 81 m^2

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