Home
Class 9
MATHS
The diameter of a sphere is decreased by...

The diameter of a sphere is decreased by 25%. By what percent its curved surface area decrease?

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

The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area decrease?

The diameter of a sphere is decreased by 25%. By what per cent does its curved surface area decrease?

If the temperature of an ideal gas is increased by 25% then by what percentage would its volume increase?

The diameter of the base of a cone is 6 cm and height is 4 cm. Find its curved surface area.

If each edge of a cube is increased by 25%, then the percentage increase in its surface area is: (a) 25% (b) 50% (c) 56.25%

If the diameter of cross-section of a wire is decreased by 5% how much percent will the length be increased so that the volume remains the same?

The diameter of a sphere is 10 cm. Find its surface area.

The radius of a solid right circular cylinder decreases by 20% and its height increases by 10%. Find the percentage change in its : curved surface area

The diameter of a sphere is 4.24 m . Calculate its surface area with due regard to significant figures.

The diameter of the base of a cylinder is 7 cm and height is 5 cm. Find its curved surface area.

RD SHARMA ENGLISH-SURFACE AREA AND VOLUME OF A SPHERE -All Questions
  1. The larges sphere is carved out of a cube of side 10.5 cm. Find the...

    Text Solution

    |

  2. A sphere, a cylinder and a cone have the same radius and same height. ...

    Text Solution

    |

  3. The diameter of a sphere is decreased by 25%. By what percent its c...

    Text Solution

    |

  4. A hemispherical tank is made up of an iron sheet 1 cm thick. If the...

    Text Solution

    |

  5. A capsule of medicine is in the shape of a sphere of diameter 3.5 mm....

    Text Solution

    |

  6. The diameter of the moon is approximately one-fourth of the diamete...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  9. Find the radius of a sphere whose surface area is 154\ c m^2

    Text Solution

    |

  10. The hollow sphere, in which the circus motorcyclist performs his st...

    Text Solution

    |

  11. Find the volume of a sphere whose surface area is 154 c m^2

    Text Solution

    |

  12. How many spherical bullets can be made out of a solid cube of lead who...

    Text Solution

    |

  13. If a sphere of radius 2r has the same volume as that of a cone w...

    Text Solution

    |

  14. A metallic spherical shell of internal and external diameters 4 cm and...

    Text Solution

    |

  15. The surface area of a sphere of radius 5 cm is five times the curved s...

    Text Solution

    |

  16. In a sphere is inscribed in a cube, find the ratio of the volume of...

    Text Solution

    |

  17. In a sphere the number of faces is 1         (b)  2      (c)  3 ...

    Text Solution

    |

  18. The total surface area of a hemisphere of radius r is pir^2 (b) 2p...

    Text Solution

    |

  19. The ratio of the total surface area of a sphere and a hemisphere of ...

    Text Solution

    |

  20. A sphere and a cube are of the same height. The ratio of their volu...

    Text Solution

    |