Question

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find the total surface area of cuboid obtained by joining two cubes of side 3cm each side by side​

Answer 1

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This is your answer

Answer:

(If a cuboid obtained by joining two cubes of edges, the height becomes "a+a = 2a". For better understanding refer the diagram.) = 10a² units. Thus, the total surface area of a cuboid is 10a² units.

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