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The edge of three cubes of metal is 3 dm, 4 dm and 5 dm.
Question 1:
The edge of three cubes of metal is 3 dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?
A.
3 dm
B.
4 dm
C.
5 dm
D.
6 dm
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3^3 + 4^3 + 5^3 = a^3 => a = 6
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