Topics

A) 9, 8 and 10 cm |

B) 12, 6 and 10 cm |

C) 18, 4 and 10 cm |

D) 30, 2 and 12 cm |

Correct Answer:

A) 9, 8 and 10 cm |

Description for Correct answer:

Volume of the cuboid = \( \Large 720 cm^{3} \)

Height of the cuboid

= \( \Large \frac{Volume \ of \ the \ cuboid}{Base \ area \ of \ the \ cuboid} \)

= = \( \Large \frac{720}{72} = 10 cm \)

Surface area of the cuboid

= \( \Large 2 \left(lb + bh + hl\right) \)

= \( \Large 2 \left(9 \times 8 + 8 \times 10 + 10 \times 9\right) \)

= \( \Large 2 \left(72 + 80 + 90\right) \)

=\( \Large 2 \times 242 \)

= \( \Large 484 cm^{2} \)

Therefore, It is obvious that length, breadth and height of the cuboid is 9 cm, 8 cm and 10 cm.

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

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