Cross-section 35063

How many m² of sheet metal is needed for plating chimneys 4 m high with a rectangular cross-section with dimensions of 2.5 m and 1.2 m?

Correct answer:

S =  29.6 m2

Step-by-step explanation:

c=4 m a=2.5 m b=1.2 m  o=2 (a+b)=2 (2.5+1.2)=537=7.4 m  S=c o=4 7.4=29.6 m2



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