Home
Class 7
MATHS
In Figure, the side B C of A B C is prod...

In Figure, the side `B C` of `A B C` is produced to form ray `B D` as shown. Ray `C E` is drawn parallel to `B A` . Show directly, without using the angle sum property of a triangle that `/_A C D=/_A+/_B` and deduced that `/_A+/_B+/_C=180^0dot`

Promotional Banner

Topper's Solved these Questions

  • PROFIT AND LOSS

    RD SHARMA|Exercise All Questions|51 Videos
  • RATIO AND PROPORTION

    RD SHARMA|Exercise All Questions|79 Videos
RD SHARMA-PROPERTIES OF TRIANGLES-All Questions
  1. The side B C of aA B C is produced on both sides. Show that the sum of...

    Text Solution

    |

  2. Sides B C ,C A and BA of a triangle A B C are produced to D ,Q ,P resp...

    Text Solution

    |

  3. In Figure, the side B C of A B C is produced to form ray B D as shown....

    Text Solution

    |

  4. In fig .35, /C B X is an exterior angle of A B C at B . Name The inte...

    Text Solution

    |

  5. In fig.36, two of the angles are indicated. What are the measures o...

    Text Solution

    |

  6. In a triangle, an exterior angle at a vertex is 95^0 and it one of ...

    Text Solution

    |

  7. One of the exterior angles of a triangle is 80^0 , and the interior...

    Text Solution

    |

  8. The exterior angles, obtained on producing the base of a triangle b...

    Text Solution

    |

  9. The sides B C ,C A and A B of a triangle A B C , are produced in or...

    Text Solution

    |

  10. In fig.38,\ A C|C E\ a n d\ /A :/B :/C=3:2:1, find the value of /E C D...

    Text Solution

    |

  11. A student when asked to measures two exterior angles of A B C obse...

    Text Solution

    |

  12. In fig.39, A D\ a n d\ C F are respectively perpendiculars to sides...

    Text Solution

    |

  13. In fig.40, measures of some angles are indicted. Find the value of ...

    Text Solution

    |

  14. In fig.41, A B C is a right triangle right angled at Adot\ D lies o...

    Text Solution

    |

  15. A B C is a triangle in which /B=/C and ray A X bisects the exterior an...

    Text Solution

    |

  16. The sides BC of A B C is product to a point D . The bisector of /A me...

    Text Solution

    |

  17. D is a point on the side B C of A B Cdot A line P D Q , though D , me...

    Text Solution

    |

  18. Explain in the concept of interior and exterior angles and in each ...

    Text Solution

    |

  19. Compute the value of x in each of the following figures.

    Text Solution

    |

  20. In each of the following there are three positive numbers. State if...

    Text Solution

    |