Question

An aquarium is in the shape of a cuboid
whose measures are 0.8 m x 0.3 m x 0.4 m.
Its faces (excluding the front face) are to be
covered with a coloured paper. Find the cost of
the coloured paper at the rate of 100 per m².​

Answer 1

Answer:

8000cm^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

=8000cm^2

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thanks.........