Question

the length , breadth and height of a room are 7m , 6m and 4m respectively . find each of the following . 1 the area of the four walls 2 the area of the roof

Answer 1

1)Area of four walls=C.S.A of cuboid
=2h(l+b)=2×4(7+6)=8(13)=104cm^2
2)Area of roof=area of rectangle=l×b=7×6=42cm^2
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