The walls and ceiling of a room 7m long, 5m wide and 3.5m high are covered with paper 6dm wide. Find the length of paper required, if no length less than a metre can be bought. (The answer given in my book is 199m²)
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Answer:
119 is ur answer
Step-by-step explanation:
l=7m
b=5m
h=3.5m
we have to find csa +area of ceiling(l×b)
=2h(l+b)+lb
(2×3.5)(7+5)+7×5
(7×12)+35
=119m^2
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