Wallpaper for Room Walls

How many square metres of wallpaper are needed to cover the walls of a room measuring 3 m × 4 m with a height of 2.5 m?

Final Answer:

S =  35 m2

Step-by-step explanation:

a=3 m b=4 m c=2.5 m  o=2 (a+b)=2 (3+4)=14 m S=o c=14 2.5=35 m2



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