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The maximum length of a pencil that can be kept in a rectangular box of dimensions 8 cm x 6 cm x 2 cm is?

2 √13 cm
2 √14 cm
2 √26 cm
10 √2 cm

Correct Answer: 2 √26 cm

Explanation:

Length of pencil = √ [(8)² + (6)² + (2)²] cm
= √104 cm
= 2√26

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