Question

The walls and ceiling of a room are to be painted, If the length, breadth and height of the room are representively 5.5m, 3m and 4.5m, find the area to be painted?
can anyone help me by solving this in notes​

Answer 1

Answer:

79.5m^2

Step-by-step explanation:

since the surface area of cuboid =2(lb+bh+hl) but we need the area of 4 walls + of the ceiling so the area to be painted =2[(bh+hl)+lb}

so after putting values 2[(3x4.5)(4.5x5.5)]+(5.5x3)

=79.5 m

hope this helped and answer was correct!!!

thankyou