Question

➠An aquarium is in the form of a cuboid whose external measures are 80 cm x 30 cm x 40 cm. The base, side faces and back face are to be covered with a coloured paper. Find the area of the paper needed?

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Answer 1

Area of paper required = area of base + 2 area of side + area of back

=(80×30)+2(30×40)+(80×40)

=2400+2400+3200

=8000cm

2

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Answer 2

Area of paper required =

area of base + 2 area of side + area of back

=(80×30)+2(30×40)+(80×40)

=2400+2400+3200

=8000cm²

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Hope you understand