the internal measures of a cuboidal room
12mx8mx4m
find the total cost of whitewashing all four Walls is 8 per metre. what will be the cost of white washing if the celling of the room is also whitewashed?
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Answer:
surface area of the cuboid=2(lb+bh+lh)
=2(12*8+8*4+12*4)
=2(96+32+48)
=2(176)
=352sq.m
the cost of white washing per metre=Rs:-8
the cost of white washing for the total room =352*8
=Rs:-2816
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