Home
Class 10
MATHS
The curved surface area of a frustum of ...

The curved surface area of a frustum of a cone is `21 pi cm^(2)` . If the radii of its upper and lower circular surfaces are 5 cm and 7 cm respectively, then its total surface area is

A

`33 pi cm^(2)`

B

`53 pi cm^(2)`

C

`95 pi cm^(2)`

D

`165 pi cm^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MENSURATION

    TARGET PUBLICATION|Exercise Additional Problems for Practice (Based on Practice Set 7.1)|15 Videos

  • MENSURATION

    TARGET PUBLICATION|Exercise Additional Problems for Practice (Based on Practice Set 7.2)|6 Videos

  • MENSURATION

    TARGET PUBLICATION|Exercise Activities for Practice|3 Videos

  • LINEAR EQUATIONS IN TWO VARIABLES

    TARGET PUBLICATION|Exercise Chapter Assessment|20 Videos

  • MODEL QUESTION PAPER

    TARGET PUBLICATION|Exercise Questions|23 Videos

Similar Questions

Explore conceptually related problems

A frustum of a cone has height 8 cm and radii of upper and lower circular surfaces are 22 cm and 16 cm respecticely. Its slant height is

The radii of ends of a frustum are 14 cm and 6 cm respectively and its height is 6 cm. Find its total surface area

Find the curved surface area of frustum of a cone of height 12 cm and radii of circular ends are 9 cm and 4 cm.

If the radii of the circular ends of a bucket 28 cm high, are 28 cm and 7 cm, find its capacity and total surface area.

The slant height of the frustum of a cone is 4 cm, and the perimeter of its circular bases are 18 cm and 6 cm respectively. Find the curved surface area of the frustum.

If the slant height of the frustum of a cone is 6 cm and the perimeters of its circular bases are 24 cm and 12 cm respectively. What is the curved surface area of the frustum?

The volume and heigh of a right circular cone are 1232 cm^(3) and 24 cm respectively , the area of its curved surface ( in cm^(2) ) is :

The curved surface area of a cone is 308 cm^(2) and its slant height is 14 cm. Find the radius of the base and total surface area of the cone.

TARGET PUBLICATION-MENSURATION-Multiple Choice Questions
  1. The radii of the top and bottom of a bucket of slant height 10 cm are...

    Text Solution

    |

  2. A frustum of a cone has height 8 cm and radii of upper and lower circ...

    Text Solution

    |

  3. The curved surface area of a frustum of a cone is 21 pi cm^(2) . If t...

    Text Solution

    |

  4. If r(1) = 5 cm, r(2) = 3 cm, h = 9 cm, then the volume of frustum of...

    Text Solution

    |

  5. If theta is the angle (in degrees) of a sector of a circle of radius...

    Text Solution

    |

  6. ("Area of a sector")/("Area of a circle ")=

    Text Solution

    |

  7. If the radius of circle is 6 cm and the central angle is 280^(@), the...

    Text Solution

    |

  8. If ABCD is a square, then the area of the sector shown in the figure ...

    Text Solution

    |

  9. If arcs of radius r cm are drawn with the vertices of an equilatera...

    Text Solution

    |

  10. If the area of a circle is 200 cm^(2) and that of the minor sector is...

    Text Solution

    |

  11. The diameter of a circle is 28 cm. The length of the arc when the cor...

    Text Solution

    |

  12. The angle subtended at the center of a circle of radius 15 cm by an a...

    Text Solution

    |

  13. The area of sector whose radius and length of arc are 3 cm and 16 cm ...

    Text Solution

    |

  14. The area of sector is 40 pi cm^(2) and the length of the correspon...

    Text Solution

    |

  15. If the area of sector and length of the arc of the sector are 54 cm^(...

    Text Solution

    |

  16. If the anugular measure of an arc is 36^(@) and its length is 10 cm, t...

    Text Solution

    |

  17. The area of the shaded region shown in the figure is

    Text Solution

    |

  18. If the radius of the circle is 6 cm, then the area of the shaded reg...

    Text Solution

    |

  19. If square ABCD is a square, then the area of the shaded region shown ...

    Text Solution

    |

  20. If the area of minor segment of a circle of diameter 28 cm is 206 cm^(...

    Text Solution

    |