Calculate the surface area to be painted/washed of each room of your house.
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Therefore the surface area to be painted of a room
= {2(l×h+b×h) + l×b} square units
Step-by-step explanation:
Let, length of the room = l
breadth of the room = b
height of the room = h
Total surface area of all the wall of the room = 2(l×h+b×h) square units
The surface area of the roof is = l×b square units
Therefore the surface area to be painted of a room
= {2(l×h+b×h) + l×b} square units
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