Question

The total surface area a cube is 486 square centimetre. It is melted and
recast into small cubes of side 3mm. Find the number of small cubes
made.​

Answer 1

Answer:

T.S.A of cube = 6a²=486

a=√486/6-√81=9

no. of cubes=volume of big cube/volume of small cube

=90×90×90/3×3×3=27000 cube. Ans.

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