Home
Class 9
MATHS
A right circular cylinder just encloses ...

A right circular cylinder just encloses a sphere of radius `r` as shown in figure. Find the : surface area of the sphere curved surface area of the cylinder ratio of the area obtained in (i) and (ii)

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SURFACE AREA AND VOLUME OF A RIGHT CIRCULAR CYLINDER CONE

    RD SHARMA ENGLISH|Exercise All Questions|129 Videos

  • TABULAR REPRESENTATION OF STATISTICAL DATA

    RD SHARMA ENGLISH|Exercise All Questions|70 Videos

Similar Questions

Explore conceptually related problems

A right circular cylinder just encloses a sphere of radius r as shown in figure. Find the i.surface area of the sphere ii curved surface area of the cylinder iii. ratio of the area obtained in (i) and (ii)

A right circular cylinder just encloses a sphere of radius r (see Fig. 13.22). Find(i) surface area of the sphere,(ii) curved surface area of the cylinder,(iii) ratio of the areas obtained in (i) and (ii).

Find the surface area of a sphere of radius 7cm.

Find the surface area of a sphere of radius 14cm.

Find the surface area of a sphere of radius 7 cm.

Find the ratio of the surface area of a sphere and total surface area of a hemisphere.

Find the radius of the sphere whose surface area is 36pi cm^(2) .

Prove that the surface area of a sphere is equal to the curved surface area of the circumscribed cylinder.

The surface area of two spheres are in the ratio 16:9 .Find the ratio of their volumes.

The height of a circular cylinder is 20 cm and the radius of its base is 7 cm. Find : the total surface area.

RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
  1. A sphere, a cylinder and a cone are of the same radius and same hei...

    Text Solution

    |

  2. Show that the surface area of a sphere is the same as that of the l...

    Text Solution

    |

  3. A right circular cylinder just encloses a sphere of radius r as sho...

    Text Solution

    |

  4. A hemispherical bowl is made of steel, 0.25 cm thick. The inner rad...

    Text Solution

    |

  5. The internal and external diameters of a hollow hemispherical vesse...

    Text Solution

    |

  6. The internal and external diameters of a hollow hemispherical vesse...

    Text Solution

    |

  7. A storage tank consists of a circular cylinder with a hemisphere ad...

    Text Solution

    |

  8. A toy is in the shape of a right circular cylinder with a hemispher...

    Text Solution

    |

  9. A wooden toy is in the form of a cone surmounted on a hemisphere. T...

    Text Solution

    |

  10. The diameter of a sphere is decreased by 25%. By what per cent does...

    Text Solution

    |

  11. Find the surface area of a sphere of radius: 10.5 cm         (ii...

    Text Solution

    |

  12. Find the surface area of a sphere of diameter: (i) 14 cm (ii) 21 cm (i...

    Text Solution

    |

  13. Find the total surface area of a hemisphere of radius 10 cm

    Text Solution

    |

  14. The surface area of a sphere is 5544\ c m^2, find its diameter.

    Text Solution

    |

  15. A hemispherical bowl made of brass has inner diameter 10.5cm. Find ...

    Text Solution

    |

  16. The dome of a building is in the form of a hemisphere. Its radius i...

    Text Solution

    |

  17. Assuming the earth to be a sphere of radius 6370 km, how many squar...

    Text Solution

    |

  18. A cylinder of same height and radius is placed on the top of a hemi...

    Text Solution

    |

  19. A wooden toy is in the form of a cone surmounted on a hemisphere. T...

    Text Solution

    |

  20. A storage tank consists of a circular cylinder with a hemisphere ad...

    Text Solution

    |