If length , breadth and height of a rectangular room are 20m , 8m ,5m then find the area of the four walls.
If length , breadth and height of a rectangular room are 20m , 8m ,5m then find the area of the four walls.
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Verified answer
L=20mb=8m
h=5m
so,
area of four walls = 2(l+b)h = 2(20+8)5 = 2×28×5 = 280m²
Length = l = 20 m
Breadth = b = 8 m
Height = h = 5 m
Area of four walls = LSA of cuboid = 2h (l + b)
= 2 x 5 [20+8]
= 10 x 28
= 280 m²