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A) \( \Large 2\sqrt{13} cm \) |

B) \( \Large 2\sqrt{14} cm \) |

C) \( \Large 2\sqrt{26} cm \) |

D) \( \Large 10\sqrt{2} cm \) |

Correct Answer:

C) \( \Large 2\sqrt{26} cm \) |

Description for Correct answer:

Length of largest pencil that can be kept in a box

= Diagonal of box = \( \Large \sqrt{l^{2}+b^{2}+h^{2}} \)

where, l = 8 cm, b = 6 cm, h = 2 cm

= \( \Large \sqrt{64 + 36 + 4} \)

= \( \Large \sqrt{104} = 2\sqrt{26 cm} \)

Part of solved Volume and surface area questions and answers : >> Elementary Mathematics >> Volume and surface area

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