KöMaL 2016 C1362
The volume of a cuboid is 10.9545 cm, the arithmetic mean of the lengths of the edges is 2.2655 cm, and their harmonic mean is 2.1769 cm. Determine the length of the diagonal of the cuboid, to the nearest thousandth of a centimetre.
Official text KöMaL. Quoted with source.
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