Three cubes with integer edge lengths are given. It is known that the sum of their surface areas is \(564 \ \text{cm}^2\). Then the possible values of the sum of their volumes are
Question and options
Three cubes with integer edge lengths are given. It is known that the sum of their surface areas is . Then the possible values of the sum of their volumes are
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Answer and explanation
Correct answer: A - \(764 \ \text{cm}^3\) and \(586 \ \text{cm}^3\)
6(a^2+b^2+c^2) = 564 gives a^2+b^2+c^2 = 94; integer solutions are (9,3,2) and (7,6,3). Volumes: 729+27+8 = 764 and 343+216+27 = 586.
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