Home
Class 9
MATHS
In the fig. side BC of triangleABC is pr...

In the fig. side BC of `triangleABC` is produced to from ray BD and CE||BA
Prove that `angleACD=angleA+angleB`

Promotional Banner

Topper's Solved these Questions

  • LINES AND ANGLES

    MODERN PUBLICATION|Exercise EXERCISE|151 Videos
  • LINEAR EQUATIONS IN TWO VARIABLES

    MODERN PUBLICATION|Exercise EXERCISE|151 Videos
  • MODEL TEST PAPER 1

    MODERN PUBLICATION|Exercise EXAMPLE|9 Videos

Similar Questions

Explore conceptually related problems

In the fig side BC of triangleABC is produced to angleACD=128^@ and angleABC=43^@ find angleBAC and angleACB .

In the fig. arms BA and BC of angleABC respectively parallel to arms BD and EF of angleABC . Prove that angleABC+angleDEF=180^@

Side BC of a triangle ABC has been produced to a point D such that angleACD=120^@ . If angleB=1/2angleA then angleA is equal to

In fig. D and E are points on side BC of triangleABC such that BD=CE and AD=AE. Show that triangleABDequivtriangleACE

In triangleABC , AD bisects angleA and angleC>angleB prove that angleADB>angleADC .

ABCD s a trapezium in which AB||CD and AD=BC Show that: angleA=angleB

In the fig AE=AD and BD=CE. Prove that triangleAEBequivtriangleADC

In Fig. D is a point on side BC of triangleABC such that (BD)/(CD) = (AB)/(AC) . Prove that AD is the bisector of angleBAC .

If O is the circumcentre of a triangleABC, OD bot BC , prove that angleBOD = angleA

In fig., D is a point on side BC of triangleABC such that (BD)/(DC)=(AB)/(AC) . Prove that, AD is bisector of angleBAC . .

MODERN PUBLICATION-LINES AND ANGLES-EXERCISE
  1. In the fig. side BC of triangleABC is produced to from ray BD and CE||...

    Text Solution

    |

  2. Find the complement of each of the following angles: 25^@

    Text Solution

    |

  3. Find the complement of each of the following angles: 40^@

    Text Solution

    |

  4. Find the complement of each of the following angles: 58^@

    Text Solution

    |

  5. Find the complement of each of the following angles: 77^@

    Text Solution

    |

  6. Find the supplement of each of the following angles: 54^@

    Text Solution

    |

  7. Find the supplement of each of the following angles: 138^@

    Text Solution

    |

  8. Find the supplement of each of the following angles: 14^@

    Text Solution

    |

  9. Find the supplement of each of the following angles: 172^@

    Text Solution

    |

  10. Find the measure of an angle, which is 36^@ is less than its complemen...

    Text Solution

    |

  11. Find the measure of an angle, which is 36^@ more than its complement.

    Text Solution

    |

  12. Find the measure of an angle which is 36^@ is less than its suplement.

    Text Solution

    |

  13. Find the measure of an angle, which is 36^@ is less than its complemen...

    Text Solution

    |

  14. If the angles (2x-10)^@ and (x-5)^@ are complementary angles. Find x.

    Text Solution

    |

  15. Find the measure of angle, if seven times its complement is 10^@ less ...

    Text Solution

    |

  16. If an angle differs from its complement by 10^@, find its angle.

    Text Solution

    |

  17. An angle is 14^@ more than its complementary angle. What is its measur...

    Text Solution

    |

  18. Find the angle which is double its complement.

    Text Solution

    |

  19. Find the angles which is five times its supplement.

    Text Solution

    |

  20. Two complementary angles are in the ratio of 4:5. find the angles.

    Text Solution

    |

  21. Two supplementary angles are in the ratio 4:5. find the angles.

    Text Solution

    |