the walls and ceiling of a room are to be plastered. the length, breadth and height of the room are 4.5 m , 3m and 350 cm respectively. find the cost of plastering at the rate of rs 8 per m square
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Length=4.5m
Breadth=3m
Height=3.5cm
We have to measure surface area of the room.
Formula=2 (lh+lw+hw)
2 (4.5×3.5+4.5×3+3.5×3)
2 (15.75+13.5+10.5)
2 (39.75)
79.5=surface area
We would subtaract the area of the floor.
79.5-(4.5×3)
79.5-13.5
66
66×8=528
It would take rupees 528 for plastering the ceilings and walls of the room.
Breadth=3m
Height=3.5cm
We have to measure surface area of the room.
Formula=2 (lh+lw+hw)
2 (4.5×3.5+4.5×3+3.5×3)
2 (15.75+13.5+10.5)
2 (39.75)
79.5=surface area
We would subtaract the area of the floor.
79.5-(4.5×3)
79.5-13.5
66
66×8=528
It would take rupees 528 for plastering the ceilings and walls of the room.
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