Asked by kora mosu

a classroom is 11m long and 8m wide and 5m height .find the sum of area of its floor and the four wall.
Answered by Henry
A = L*W + 2W*h + 2L*h.
A = 11*8 + 2(8*5) + 2(11*5) = 278 ft^2.
Answered by Anonymous
U gave wrong answer
Answered by Arnav
It is not ft it is meters
Answered by Sai Vaibhav
Given,

length = 11 m
breadth =  8 m
height = 5 m

We know,
Area of floor = Area of rect.
                    = l*b
                    = 11*8
                    = 88 m
Area of 4 walls = 2(l+b)h
                         = 2(11+8)*5
                         = 2 * 19 * 5
                         = 190 m²
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