Home
Class 10
MATHS
D and E are respectively two points on t...

D and E are respectively two points on the sides AB and AC of `triangleABC` such that `DE||BC`.If (AD)/(DB)=2/3 find (BC)/(DE)

Promotional Banner

Topper's Solved these Questions

  • TRIANGLES

    R G PUBLICATION|Exercise EXERCISE|108 Videos

  • SURFACE AREA AND VOLUMES

    R G PUBLICATION|Exercise EXERCISE|69 Videos

Similar Questions

Explore conceptually related problems

D and E are respectively the point on the sides AB and AC of a trinagle ABC such that DE|\|BC . Through the point E a line parallel to CD is drawn which cut AB at the point F then show that AD^2=ABxxAF

D and E are two points on the sides AC and AB respectively of triangleABC such that triangle ADE~triangleABC .If AD=1.9cm,AE=3.6cm.BE=2.1cm.and BC=8.4 cm.find DE.

In triangle ABC D and E are respectively two points on the side AB and AC.AB=12 cm,AD=8 cm,AE=12 cm and AC=18 cm then show that DE|\|BC .

D,E and F are respectively the mid-points of sides AB,BC and CA of triangleABC .Find the ratio of the areas of triangleDEF and triangleABC .

D is the point on the side BC of ABC such that angleADC = angleBAC . Prove that, (BC)/(CA) = (CA)/(CD) .

D is a point on the side BC of a triangle ABC such that angleADC=angleBAC .Show that CA^2=CB.CD .

If D is the middle point of the side BC of the triangle ABC, prove that AB^2 + AC^2 = 2(AD^2 + DC^2) .

D and E are points on the sides CA and CB respectively of a triangle ABC right angled at C.Prove that, AE^2+BD^2=AB^2+DE^2 .

CD and GH are respectively the bisectors of angleACB and angleEGF such that D and H lie on sides AB and FE of triangleABC and triangleFEG respectively. If triangleABC~triangleFEG .show that:(i) (CD)/(GH)=(AC)/(FG)

CD and GH are respectively the bisectors of angleACB and angleEGF such that D and H lie on sides AB and FE of triangleABC and triangleFEG respectively. If triangleABC~triangleFEG .show that:(iii) triangleDCA~triangleHGF

R G PUBLICATION-TRIANGLES-EXERCISE
  1. D and E are respectively two points on the sides AB and AC of triangle...

    Text Solution

    |

  2. All circles are . (congruent, similar)

    Text Solution

    |

  3. All squares are -. (Similar, congruent)

    Text Solution

    |

  4. All triangles are similar. (isosceles, equilateral)

    Text Solution

    |

  5. Two polygons of the same number of sides are similar, if(a) their corr...

    Text Solution

    |

  6. Two polygons of the same number of sides are similar, if(b) their corr...

    Text Solution

    |

  7. Give two different examples of pair of(i) similar figures

    Text Solution

    |

  8. Give two different examples of pair of((ii) non-simiIar figures

    Text Solution

    |

  9. State whether foIIowing quadrilaterals are similar or not:

    Text Solution

    |

  10. In fig(i) ,DE||BC.Find EC in (i).

    Text Solution

    |

  11. E and F are points on the sides PQ and PR respectively of a trianglePQ...

    Text Solution

    |

  12. E and F are points on the sides PQ and PR respectively of a trianglePQ...

    Text Solution

    |

  13. E and F are points on the sides PQ and PR respectively of a trianglePQ...

    Text Solution

    |

  14. In Fig. , if LM||CB and LN||CD,prove that (AM)/(AB)=(AN)/(AD)

    Text Solution

    |

  15. In Fig. DE||AC and DF||AE.Prove that (BF)/(FE)=(BE)/(EC)

    Text Solution

    |

  16. In Fig. 6.20, DE||OQ and DF||OR.Show that EF||QR.

    Text Solution

    |

  17. In Fig., A, B and C are points on OP, OQ and OR respectively such that...

    Text Solution

    |

  18. Using Theorem 6.1, prove that a line drawn through the mid-point of on...

    Text Solution

    |

  19. Using Theorem 6.2, prove that the line joining the mid-points of any t...

    Text Solution

    |

  20. ABCD is a trapezium in which AB||DCand its diagonals intersect each ot...

    Text Solution

    |

  21. The diagonals of a quadrilateral ABCD intersect each other at the poin...

    Text Solution

    |