Home
Class 12
MATHS
The radius and slant height of a cone ar...

The radius and slant height of a cone are in the ratio of 4:7. If its curved surface area is `792 c m^2,` find its radius. `(U s epi=(22)/7)`

A

3 cm

B

4 cm

C

12 cm

D

5 cm

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • VOLUME AND SURFACE AREA

    ARIHANT PUBLICATION BIHAR|Exercise Exam Booster For Cracking Exam|42 Videos

  • TRIGONOMETRIC RATIOS

    ARIHANT PUBLICATION BIHAR|Exercise EXAM BOOSTER (FOR CRACKING EXAM)|25 Videos

Similar Questions

Explore conceptually related problems

The radius and slant height of a cone are in the ratio of 4:7. If its curved surface area is 792cm^(2), find its radius.(U se pi=(22)/(7))

The radius and slant height of a cone are in the ratio of 4:7. If its curved surface area is 792cm^(2), find the radius.(Use pi=(22)/(7))

The radius of base and slant height of a cone are in the ratio 4 : 7. If its curved surface area is 792 cm^(2) , then the radius (in cm) of its base is [Use pi = 22//7 ]

If the radius and slant height of a cone are a r/2 and 2l. Then find its total surface area.

The ratio of the slant height and radius of the cone is 7 : 4. If itscurved surface area is 550 cm^(2) , then find its radius.

The radius and height of a right circular cone are in the ratio 1: (2.4). If its curved surface area is 2502.5 cm^(2) , then what is its volume? (Take pi= ""_(7)^(22) )

The radius and slant height of the cone are 5 cm and 10 cm respectively. Find the curved surface area. (pi=3.14)

The radius and slant height of a cone are 4 cm and 25 cm respectively. Find the curved surface area of that cone. (pi = 3.14)

ARIHANT PUBLICATION BIHAR-VOLUME AND SURFACE AREA -Exam Booster For Cracking Exam
  1. A copper sphere of radius 3 cm is beaten and drawn into a wire of diam...

    Text Solution

    |

  2. The dimensions of a cinema hall are 100m, 50m and 18m. How many per...

    Text Solution

    |

  3. A class room is 7\ m\ long,\ 6. 5\ m\ w i d e\ a n d\ 4\ m\ h igh ....

    Text Solution

    |

  4. How many bricks each measuring 25 cm xx 15 cm xx 8 cm will be required...

    Text Solution

    |

  5. One cubic metre piece of copper is melted and recast into a square cro...

    Text Solution

    |

  6. Two cylinder cans have bases of the same size. The diameter of each...

    Text Solution

    |

  7. A solid cylinder has a total surface area of 231\ c m^2dot Its curv...

    Text Solution

    |

  8. The volume of a metallic cylindrical pipe is 784 cm^(3). Its length is...

    Text Solution

    |

  9. Given a solid cylinder of radius 10 cm and length 1000 cm a cylinder h...

    Text Solution

    |

  10. The radius and slant height of a cone are in the ratio of 4:7. If i...

    Text Solution

    |

  11. How many metres of cloth 50 m wide will be required to make a conical ...

    Text Solution

    |

  12. A sector containing an angle of 90^(@) is cut from a circle of radius ...

    Text Solution

    |

  13. If the area of the base of a cone is 770 cm^(2) and the area of the cu...

    Text Solution

    |

  14. A hollow sphere of internal and external diameters 4 cm and 8 cm re...

    Text Solution

    |

  15. A solid metallic cylinder of base 3 cm and height 5 cm is melted to ma...

    Text Solution

    |

  16. A solid consists of a circular cylinder with an exact fitting right...

    Text Solution

    |

  17. The radius of the internal and external surface of a hollow spherical ...

    Text Solution

    |

  18. The height of a right prism is 15 cm. Its base is a triangle with side...

    Text Solution

    |

  19. The base of a prism is a right angled triangle, the length of whose hy...

    Text Solution

    |

  20. A vessel in the form of a hemisphere surrounded by a cylinder (open at...

    Text Solution

    |