the edge of three cubes of metal is 3 dm, 4 dm and 5 dm. they are melted and formed into a single cubfind the edge of the new cube?

4 dm

5 dm

3 dm

6 dm

the edge of three cubes of metal is 3 dm, 4 dm and 5 dm. they are melted and formed into a single cubfind the edge of the new cube?

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