Home
Class 12
MATHS
If a right circular cylinder tunnel of d...

If a right circular cylinder tunnel of diameter 2 m and length 40 m is to be instructed from a sheet of iron. Then, the area of iron sheet required (in `m^ 2`) is
(a) `40 pi`
(b) `60 pi`
(c) `80 pi`
(d) `100 pi`

A

`40 pi`

B

`60pi`

C

`80pi`

D

`100pi`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • VOLUME AND SURFACE AREA

    ARIHANT PUBLICATION BIHAR|Exercise Exam Booster For Cracking Exam|42 Videos

  • TRIGONOMETRIC RATIOS

    ARIHANT PUBLICATION BIHAR|Exercise EXAM BOOSTER (FOR CRACKING EXAM)|25 Videos

Similar Questions

Explore conceptually related problems

A right circular cylindrical tunnel of diameter 4 m and length 10 m is to be constructed from a sheet of iron . The area of the iron sheet required :

A right circular cylindrical tunnel of diameter 5 m and length 10 m is to be constructed from a sheet of iron. The area of iron sheet required will be :

A right circular cylindrical tunnel of diameter 2m and length 40m is to be constructed from a sheet of iron.The area of the iron sheet required in m^(2), is 40 pi(b)80 pi(c)160 pi(d)200 pi

If the surface area of a sphere is 144pi\ m^2, then its volume (in\ m^3) is 288pi (b) 316\ pi (c) 300\ pi (d) 188\ pi

The volume of a right circular cylinder is 2310m^(2) and diameter of base is 14m, then find the curved surface area of the cylinder.

The period of cos5 theta is (a) pi^(2) (b) 2 pi (c) 2 pi/5 (d) pi/3

Find the capacity of a closed rectangular cistern whose length is 8m, breadth 6m and depth 2.5m. Also,find the area of the iron sheet required to make the cistern.

Find the capacity of a closed cuboidal cistern whose length is 3 m, breadth is 2 m and height is 6 m. Also find the area of iron sheet required to make the cistern.

ARIHANT PUBLICATION BIHAR-VOLUME AND SURFACE AREA -Exam Booster For Cracking Exam
  1. A metal pipe in 77 cm long. If the inner diameter ofa cross section is...

    Text Solution

    |

  2. If the curved surface area of a cylinder is 1320 cm^2 and its base has...

    Text Solution

    |

  3. If a right circular cylinder tunnel of diameter 2 m and length 40 m is...

    Text Solution

    |

  4. A conical tent of a diameter 24 m at the base and its height 16 m. The...

    Text Solution

    |

  5. A right angled triangle ABC with sides 5 cm, 12 cm and 13 cm is revolv...

    Text Solution

    |

  6. The radius and height of a right circular cone are in the ratio of 5 :...

    Text Solution

    |

  7. If the height of a cone is doubled then its volume is increased by

    Text Solution

    |

  8. If the height and the radius of a cone are doubled, the volume of the ...

    Text Solution

    |

  9. If the ratio of volumes of two spheres is 1 : 8, then the ratio of the...

    Text Solution

    |

  10. A spherical ball of lead 3cm in diameter is melted and recast into ...

    Text Solution

    |

  11. A copper sphere of radius 3 cm is beaten and drawn into a wire of diam...

    Text Solution

    |

  12. The dimensions of a cinema hall are 100m, 50m and 18m. How many per...

    Text Solution

    |

  13. A class room is 7\ m\ long,\ 6. 5\ m\ w i d e\ a n d\ 4\ m\ h igh ....

    Text Solution

    |

  14. How many bricks each measuring 25 cm xx 15 cm xx 8 cm will be required...

    Text Solution

    |

  15. One cubic metre piece of copper is melted and recast into a square cro...

    Text Solution

    |

  16. Two cylinder cans have bases of the same size. The diameter of each...

    Text Solution

    |

  17. A solid cylinder has a total surface area of 231\ c m^2dot Its curv...

    Text Solution

    |

  18. The volume of a metallic cylindrical pipe is 784 cm^(3). Its length is...

    Text Solution

    |

  19. Given a solid cylinder of radius 10 cm and length 1000 cm a cylinder h...

    Text Solution

    |

  20. The radius and slant height of a cone are in the ratio of 4:7. If i...

    Text Solution

    |