1.

Four dice of edge 1 cm are stacked so as to form a cuboid. Find the total surface area of the cuboid (in square centimetres).A. 4B. 8C. 9D. 18

Answer» Correct Answer - D
The dimensions of a cuboid are` 4 cm xx 1 cm xx1 cm`.
The total surface area of a cuboid
`2(lb+bh+hl)sq.cm`.
The total surface area of a cuboid formed ltbr. `=2(4xx1+1xx1xx4)`
`=2xx9=18sq.cm`
Hence the correct option is (d).


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