Assertion (A): Two cubes each of edge length 10 cm are joined together. The total surface area of newly formed cuboid is $1200 \mathrm{~cm}^{2}$. Reason (R): Area of each surface of a cube of side 10 cm is $100 \mathrm{~cm}^{2}$.
Explanation
The surface area of the newly formed cuboid is indeed 1200 cm^2, which is the sum of the areas of the 6 faces of the cuboid.
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