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A) 2068 sq cm |

B) 1825 sq cm |

C) 1925 sq crn |

D) 2160 sq cm |

Correct Answer:

A) 2068 sq cm |

Description for Correct answer:

Total surface area of cylinder

= \( \Large 2 \pi r \left(h + r\right) \)

Given that, \( \Large r = \frac{14}{2} \) = 7 cm, h = 40 cm

Therefore, Required total surface area

= \( \Large 2 \times \frac{22}{7} \times 7 \times \left(40 + 7\right) \)

= \( \Large 44 \times 47 = 2068 sq. cm. \)

Total surface area of cylinder

= \( \Large 2 \pi r \left(h + r\right) \)

Given that, \( \Large r = \frac{14}{2} \) = 7 cm, h = 40 cm

Therefore, Required total surface area

= \( \Large 2 \times \frac{22}{7} \times 7 \times \left(40 + 7\right) \)

= \( \Large 44 \times 47 = 2068 sq. cm. \)

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

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