A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. what is the ratio of the total surface areas of the smaller cube to the large cube?
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Let x be the edge of the large cube. Then,
Therefore required ratio
= Total surface area of smaller cubes ÷ Surface area of larger cube
= 25 : 18.
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0
Answer:
A large cube is formed from the material obtained by melting three smaller cubes of 3, 4 and 5 cm side. What is the ratio of the total surface areas of the smaller cubes and the large cube? Explanation: Volume of the large cube = (33 + 43 + 53) = 216 cm3.
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