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Calculate the total surface area of each fish tank, each in the shape of an cuboid |
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Answer» Answer: The tank is in the shape of a cuboid. To find the area of the paper REQUIRED, we need to calculate the surface area of the cuboidal tank and subtract the area of the top SIDE and the front side. Total surface area of a cuboid of length l, BREADTH b and height h =2(l×b+b×h+l×h) length =80 cm,breadth =40 cm and height =30 cm =2(80×40+40×30+30×80)=2(3200+1200+2400)=13600cm 2
Area of the top side =80×40=3200cm 2
Area of the front side =80×30=2400cm 2
Hence. area of the paper required =13600−3200−2400=8000cm 2
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