How many strips of wallpaper of length 3m and breadth 2m will be required to cover the walls of a room of dimensions 9m by 12m by 1500cm.
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Step-by-step explanation:
Strip
l=3m
b=2m
area=3×2
6sq.m
Room
l=15m
b=12m
h=9m
total area=2(lb+bh+hl)
2(15×12 + 12×9 + 9×15)
2(180+108+135)
2×423
846sq.m
no. of strips= 846/6
141 strips
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0
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Step-by-step explanation:
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