Home
Class 9
MATHS
Total surface area of a hemisphere of ra...

Total surface area of a hemisphere of radius r is :

A

`4 pir^2`

B

`3 pir^2`

C

`2 pir^2`

D

`5 pir^2`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Total surface area of a hemisphere of radius 10 cm is :

The curved surface area of a hemisphere of radius r is :

Find the total surface area of a hemisphere of radius 10 cm . (Use pi = 3 . 14 )

Find the total surface area of a hemisphere of radius 16 cm.

Find (i) the curved surface area and (ii) the total surface area of a hemisphere of radius 21 cm.

The curved surface area of a hemisphere of radius 21 cm is :

Find the curved surface area and total surface area of hemisphere of radius 14 cm.

The curved surface area of a sphere of radius 7 cm is :

The curved surface area of a sphere of radius 14 cm is :

MBD-Surface Areas and Volumes-Exercise
  1. A Joker’s cap is in the form of a right circular cone of base radius 7...

    Text Solution

    |

  2. The curved surface area of a hemisphere of radius r is :

    Text Solution

    |

  3. Total surface area of a hemisphere of radius r is :

    Text Solution

    |

  4. The curved surface area of a sphere of radius 7 cm is :

    Text Solution

    |

  5. The curved surface area of a hemisphere of radius 21 cm is :

    Text Solution

    |

  6. The curved surface area of a sphere of radius 14 cm is :

    Text Solution

    |

  7. Curved surface area of sphere of diameter 14 cm is :

    Text Solution

    |

  8. Total surface area of a hemisphere of radius 10 cm is :

    Text Solution

    |

  9. The radius of a spherical balloon increases from 7 cm to 14 cm as air ...

    Text Solution

    |

  10. A matchbox 4 cm x 2.5 cm x 1.5 cm. What will be the volume a packet co...

    Text Solution

    |

  11. A cuboidal water tank is 6 m long 5 m wide and 4.5 m deep. How many li...

    Text Solution

    |

  12. A cuboidal vessel is 10 m long and 8 m wide. How high must it be made ...

    Text Solution

    |

  13. The capacity of a cuboidal tank is 50000 litres. The length and depth ...

    Text Solution

    |

  14. A godown measures 40 m xx 25 m xx 15 m. The maximum number of the wood...

    Text Solution

    |

  15. A river 3 m deep and 40 m wide is flowing at the rate of 2 km per hour...

    Text Solution

    |

  16. The circumference of the base of a cylindrical vessel is 132 cm and it...

    Text Solution

    |

  17. If the lateral surface of a cylinder is 94.2 cm and its height is 5 cm...

    Text Solution

    |

  18. Cost of painting inear surface of a 10 cm deep cylindrical vessel is R...

    Text Solution

    |

  19. The height and slant height of a cone are 21 cm and 28 cm. Its volume ...

    Text Solution

    |

  20. The radius and height of a right circular cone are 6 cm and 7 cm respe...

    Text Solution

    |