Home
Class 10
MATHS
A girl looks the reflection of the top o...

A girl looks the reflection of the top of the lamp post on the mirror which is 6.6 m away from the foot of the lamppost. The girl whose height is 1.25 m is standing 2.5 m away from the mirror. Assuming the mirror is placed on the ground facing the sky and the girl, mirror and the lamppost are in a same line, find the height of the lamp post ?

Text Solution

Verified by Experts

The correct Answer is:
`= 330 m`
Promotional Banner

Topper's Solved these Questions

  • GEOMETRY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO EXERCISE 4.2|21 Videos
  • GEOMETRY

    PREMIERS PUBLISHERS|Exercise SOLUTION TO EXERCISE 4.3|8 Videos
  • CO-ORDINATE GEOMETRY

    PREMIERS PUBLISHERS|Exercise Other Important Objective|25 Videos
  • MENSURATION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS|16 Videos

Similar Questions

Explore conceptually related problems

Find the angle of elevation of the top of a tower from a point on the ground, which is 30 m away the foot of a tower of height 10sqrt(3) m.

The angle elevation of the top of a tower from a point C on the ground. Which is 30 m away from the foot of the tower is 30^(@) . Find the height of the tower.

The angle of elevation of the top of a tower from a point O on the ground, qhich is 450 m away from the foot of the tower, is 40^(@) . Find the height of the tower.

the angle of elevation of the top of a tower at a point on the ground 50m away from the foot of the tower is 45^(@) . Then the height of the tower ( in meters ) is ………. .

The angle of elevation of the top of a hill at a point on the ground 130 m away from the foot of the tower is 45^(@) . Then the height of the tower ( in meter ) is .........

A man sees the top of a tower in a mirror which is at a distance of 87.6 m from the tower. The mirror is on the ground , facing upward. The man is 0.4 m away from the mirror and the distance of his eye level from the ground is 1.5 m . How tall is the tower ? (The foot of man, the mirror and the foot of the tower lie along a straight line )

From a point on the roof of a house, 11m high, it is observed that the angle of depression of the top and foot of a lamp post are 30^@ and 60^@ respectively. What is the height of the lamp post?

PREMIERS PUBLISHERS-GEOMETRY-OTHER IMPORTANT OBJECTIVE TYPE QUESTIONS
  1. A girl looks the reflection of the top of the lamp post on the mirror ...

    Text Solution

    |

  2. How many tangents can be drawn to the circle from an exterior point ?

    Text Solution

    |

  3. The length of the tangents from an exterior point P to a circle with c...

    Text Solution

    |

  4. Two tangents PA and PB are drawn from an external point P to a circle ...

    Text Solution

    |

  5. Two poles 12 cm and 22 cm stand vertically on a plane ground. If the d...

    Text Solution

    |

  6. In the figure (P hat(Q)R)=90^(@) PR = 26 cm, QR = 24 cm, (P hat(A...

    Text Solution

    |

  7. The perimeter of two similar triangles Delta PQR and Delta XYZ are 45 ...

    Text Solution

    |

  8. Delta ABC is similar to Delta PQR hat(A) = 65^(@), hat(B)=60^(@), find...

    Text Solution

    |

  9. In Delta ABC, DE||BC bar(AD)=5cm, AB = 8 cm AE=10cm then EC is :

    Text Solution

    |

  10. In Delta ABC, hat(A) =90^(@), AB = 4, AC = 3, D is the mid point of BC...

    Text Solution

    |

  11. From the figure given find hat(Q) if both are similar.

    Text Solution

    |

  12. In the figure given hat(A)=C hat(E )D, Delta CAB ~ Delta CED find x.

    Text Solution

    |

  13. If Delta ABC is similar to Delta DEF such that BC = 4cm, EF = 5 cm and...

    Text Solution

    |

  14. From the diagram find x if AQ||BP. QO = 5 cm, OP = 4 cm, BP = 8 cm.

    Text Solution

    |

  15. Given that Delta ABC is similar Delta PQR. Their perimeters are in the...

    Text Solution

    |

  16. In Delta ABC DE||BC.AD=3, AB=5, CE=1. Find AC.

    Text Solution

    |

  17. In Delta ABC, AD is the bisector of hat(A). AB = 20 cm, AC = 28 cm, BC...

    Text Solution

    |

  18. Find the length of the tangents drawn from C point 10 cm away from a c...

    Text Solution

    |

  19. Match the following :

    Text Solution

    |

  20. Delta ABC is circumscribing a circle. Find the length of BC.

    Text Solution

    |

  21. O is the centre of the circle QOR is diameter. PQ is tangent to the ci...

    Text Solution

    |