A tank 12 m long 8 metre wide and 5 M deep is to be made it is open at top determine the cost of iron sheet at the rate of 3. 50 rupees per metre if the sheet is 4 cm
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length = 12m
breadth= 8m
height =5m
surface area of cuboid = 2(lb+bh+hl)
= 2(12×8+8×5+5×12)
=2(96+40+60)
=2(196)
=392cm square
the tank is opened from the top so subtract the surface area of cuboid from area of rectangle
breadth= 8m
height =5m
surface area of cuboid = 2(lb+bh+hl)
= 2(12×8+8×5+5×12)
=2(96+40+60)
=2(196)
=392cm square
the tank is opened from the top so subtract the surface area of cuboid from area of rectangle
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