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in Mensuration by (65.5k points)

Find the area of four walls of a room whose length is 3.5m, breath 2.5m and height is 3m.

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Best answer

L = 3.5m, b = 2.5m, h = 3m 

Area of the 4 walls = L.S.A of cuboid 

= 2h(l + b) = 2 × 3(3.5 + 2.5) 

= 6(6) = 36m2

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