Home
Class 10
MATHS
A 1.6m tall girl stands at a distance...

A 1.6m tall girl stands at a distance of 3.2m from a lamp-post and casts a shadow of 4.8m on the ground. Find the height of the lamp-post by using (i) trigonometric ratios (ii) property of similar triangles.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • REAL NUMBERS

    RD SHARMA|Exercise All Questions|180 Videos

  • STATISTICS

    RD SHARMA|Exercise All Questions|230 Videos

Similar Questions

Explore conceptually related problems

A 1.6 m tall girl stands at distance of 3.2 m from a lamp post and casts shadow of 4.8 m on the ground, then what is the height of the lamp post?

If a 1.5 m-tall girl stands at a distance of 3 m from a lamp-post and casts a shadow of length 4.5 m on the ground, then the height of the lamp-post is

If a 1.5 m tall girl stands at a distance of 3 m from a lamp-post and casts a shadow of length of 4.5 m on the ground, then the height of the lamp-post is (a) 1.5 m (b) 2 m (c) 2.5 m (d) 2.8 m

A boy 1.5m tall standing from a lamp at a distance of 3m. The lamp casts a shadow of 4.5m. Find the height of the lamp.

A pole of height 6 m casts a shadow 2sqrt3 m long on the ground. Find the sun's elevation.

A tree 6m tall casts a shadow 4m long.At the same time if a tower casts the shadow 10m long then find the height of the tower.

An electric pole casts a shadow of length 20 m at a time when a tree 6 m high casts a shadow of length 8 m. Find the height of the pole.

A pole cast a shadow of length 2sqrt3 m when sun's elevation is 60^@ Find the height of the pole

A tree 6 m tall casts a shadow of length 4 m.At the same time a flag casts a shadow of length 50 m.Find the length of the pole

A vertical pole 6 m log casts a shadow of length 3.6 m on the ground. What is the height of tower which casts a shadow of length 18 m at the same time?

RD SHARMA-SOME APPLICATIONS OF TRIGONOMETRY-All Questions
  1. A tree breaks due to storm and the broken part bends so that the to...

    Text Solution

    |

  2. From a point P on the ground the angle of elevation of a 10m tal...

    Text Solution

    |

  3. A 1.6m tall girl stands at a distance of 3.2m from a lamp-post and ...

    Text Solution

    |

  4. A 1.5m tall boy is standing at some distance from a 30m tall buildi...

    Text Solution

    |

  5. The shadow of a tower standing on a level ground is found to be 40m...

    Text Solution

    |

  6. From a point on the ground the angles of elevation of the bottom an...

    Text Solution

    |

  7. The angles of depression of the top and bottom of 8m tall building ...

    Text Solution

    |

  8. A statue 1.6m tall stands on the top of pedestal. From a point on t...

    Text Solution

    |

  9. A T.V. Tower stands vertically on a bank of a river. From a point on...

    Text Solution

    |

  10. From the top of a 7m high building, the angle of elevation of the t...

    Text Solution

    |

  11. As observed from the top of a 75m tall lighthouse, the angles of de...

    Text Solution

    |

  12. The angle of elevation of the top of the building from the foot of ...

    Text Solution

    |

  13. From a point on a bridge across a river the angles of depression of...

    Text Solution

    |

  14. Two poles of equal heights are standing opposite to each other on eit...

    Text Solution

    |

  15. A vertical tower stands on a horizontal plane and is surmounted by ...

    Text Solution

    |

  16. The length of the shadow of a tower standing on level plane is foun...

    Text Solution

    |

  17. A tree breaks due to storm and the broken part bends so that the to...

    Text Solution

    |

  18. A balloon is connected to a meteorological ground station by a cabl...

    Text Solution

    |

  19. Two men on either side of the cliff 80m high observes the angles of...

    Text Solution

    |

  20. Find the angle of elevation of the sun (sun’s altitude) when the le...

    Text Solution

    |