Home
Class 9
MATHS
A boy '1.2' metres tall stands 1 metre a...

A boy '1.2' metres tall stands 1 metre away from the foot of a lamp post. If the length of his shadow is '1.5' metres, what is the height of the lamp post?

Promotional Banner

Topper's Solved these Questions

  • REAL NUMBERS

    V PUBLICATION|Exercise QUESTIONBANK|36 Videos
  • STATISTICS

    V PUBLICATION|Exercise QUESTIONBANK|39 Videos

Similar Questions

Explore conceptually related problems

When the sun is at an elevation of 40^circ the length of the shadow of a tree is 18 metres. What is the height of the tree?

A man 1.7 metres tall stands 10 metres away from the foot of a tree, and he sees the top of the tree at an angle of elevation 40^circ . How tall is the tree?

A rectangular plot is of the length 45.8 metres and breadth 39.5 metres. What is its area?

The area of a rectangle is 85 squaremetre.and the length of one of its sides is 5 metres. What Is the length of the other side?

The area of a rectangle is (1)/(2) square- metre and the length of one side is (3)/(4) . metre. What is the length of the other side?

The perimeter of a rectangle is 42 metres and its diagonal is 15 metres. What are the lengths of its sides?

If we take the length and width as 3 meters and 5 metres, what would be the perimeter?

A man of 2 m height walks at a uniform speed of 6km/h away from a lamp post of 6m height. The rate at which the length of his shadow increases is

A '1.75' metre tall man, standing at the foot of a tower, sees the top of a hill 40 metres away at an elevation of ' 60^o Climbing to the top of the tower, he sees it at an elevation of 50^o . Calculate the heights of the tower and the hill.

In a school compost pit was dug as a part of the observatíon of the world Environmental Day. The length of the pit is 3 metres breadth 2 metres arid the depth is 21 / 2 metres. It was decided to spread the soil dug out from the pit in the newly built garden. The length of the garden is 15 metres and breadth is 3 metres. Inwhat height can the soil be spread in the garden.

V PUBLICATION-SIMILAR TRIANGLES-Question bank
  1. Two poles of heights 3 metres and 2 metres are erected up on thè groun...

    Text Solution

    |

  2. In the figure, 'A P' and 'B Q' are perpendicular to 'A B'. Suppose tha...

    Text Solution

    |

  3. A boy '1.2' metres tall stands 1 metre away from the foot of a lamp po...

    Text Solution

    |

  4. Prove that PR = 2 QS.'(##VPUHSSMATIXC07E01008Q01##)'

    Text Solution

    |

  5. a) Find the measures of the angles of triangleAPB and. 'triangle APC'....

    Text Solution

    |

  6. In the figure 'angle A D B=angle B C E' Prove that 'AB xx AC=AD xx AE'...

    Text Solution

    |

  7. In the figure, 'angle A D B=angle B C D'. Prove that 'A B xx A C=A D^2...

    Text Solution

    |

  8. In the figure, 'angle A=angle D'. Prove that 'PA xx PB=PC xx PD'.'(##V...

    Text Solution

    |

  9. Draw a triangle of angles the same as those of tho triangle shown and ...

    Text Solution

    |

  10. See this picture of a rilateral. 1) Draw a rilateral with angles the ...

    Text Solution

    |

  11. Draw a rilateral with angles the same as those of this one and the sid...

    Text Solution

    |

  12. The picture shows two circles with the same centre and two triangles f...

    Text Solution

    |

  13. The lines joining the circumcentre of a triangle to the vertices are e...

    Text Solution

    |

  14. À point inside a rilateral is joined.to its vertices and the lines are...

    Text Solution

    |

  15. Triangle ABC' and 'triangle PQR' 'are similar triangles. If 'AB=6 cm, ...

    Text Solution

    |

  16. In the figure 'A D' is parallel to 'B D' and 'A B' is parallel to DE. ...

    Text Solution

    |

  17. In 'triangle A B C, P' is any point in 'B Ci D, E, F' are midpoints of...

    Text Solution

    |

  18. In the figure AB is parallel to PQ. BC is parallel to BR. Prove that '...

    Text Solution

    |

  19. Triangle ABC' is a right angled triangle with 'angle B=90degree.' The...

    Text Solution

    |

  20. In the figure 'B C'. is parallel to 'D E'. 'A B=6 ~cm, BD=3 ~cm' a) ...

    Text Solution

    |