Home
Class 14
MATHS
A solid metallic cylinder, whose base ra...

A solid metallic cylinder, whose base radius is 4 cm and height is `5 1/3`cm, is melted and converted into a sphere. What is the surface area of the sphere. (in `cm^2`)
एक ठोस धातु के बेलन (सिलिंडर ),जिसकी आधार त्रिज्या 4 cm है और ऊंचाई `5 1/3` cm है, को पिघलाकर एक गोले के रूप में परिवर्तित किया जाता है | गोले का पृष्ठ क्षेत्रफल, `cm^2` में, कितना है?

A

`64 pi`

B

`96 pi`

C

`80 pi`

D

`40 pi`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • MEAN, MEDIAN & MODE

    PINNACLE|Exercise EXERCISE|39 Videos
  • MIXTURE & ALLIGATION

    PINNACLE|Exercise EXERCISE|26 Videos
PINNACLE-MENSURATION-EXERCISE
  1. If the radius of a right circular cone is reduced by 10% and its heigh...

    Text Solution

    |

  2. The area of a circular park is approximately equal to the seven-fiftee...

    Text Solution

    |

  3. A solid metallic cylinder, whose base radius is 4 cm and height is 5 1...

    Text Solution

    |

  4. The length of a rectangle is 6 cm more than its breadth. And its perim...

    Text Solution

    |

  5. The total surface area of a solid cylinder is 1155 cm^2. Its curved su...

    Text Solution

    |

  6. From a spherical solid made of wood with radius 6 cm, a cube of maximu...

    Text Solution

    |

  7. The volumes of two spheres are in the ratio of 64:125. The ratio betwe...

    Text Solution

    |

  8. What is the volume ( in cm^3) of a sphere with diameter 18 cm. ( corre...

    Text Solution

    |

  9. The central angle of a sector of a circle with a radius of 30 cm measu...

    Text Solution

    |

  10. If the wheel of a bicycle takes 160 rounds to cover a distance of 1.8 ...

    Text Solution

    |

  11. If the area of a circle is 154 sq. cm, then find the ratio between the...

    Text Solution

    |

  12. The side of a square is a cm. The ratio between its diagonal and its s...

    Text Solution

    |

  13. A solid sphere of brass with a radius 15 cm is drawn into a wire of di...

    Text Solution

    |

  14. A solid metallic cuboid measuring 343 cm x 49 cm x 7 cm is melted and ...

    Text Solution

    |

  15. The length, breadth and height of a cuboid are 6 cm, 8 cm and 10 cm re...

    Text Solution

    |

  16. The radius of a circle is equal to the length of a rectangle. The circ...

    Text Solution

    |

  17. 2541 metallic sphere balls, each with a radius of 1 cm, are melted to ...

    Text Solution

    |

  18. A cylindrical bucket, whose height is 27 cm and base radius is 48 cm, ...

    Text Solution

    |

  19. The area of a circular ground is approximately equal to 73 1/3 % of th...

    Text Solution

    |

  20. The sides of a triangular park are 200 m, 210 m and 290 m. The area of...

    Text Solution

    |