Home
Class 7
MATHS
The side B C of aA B C is produced on bo...

The side `B C` of a`A B C` is produced on both sides. Show that the sum of the exterior angles so formed is greater than `/_A` by two right angles.

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

Similar Questions

Explore conceptually related problems

The side BC of a ABC is produced on both sides.Show that the sum of the exterior angles so formed is greater than /_A by two right angles.

The side BC of a ABC is produced on both sides.Show that the sum of the exterior angles so formed is greater than /_A by two right angles.

If the sides of a triangle are produced in an order, show that the sum of the exterior angles so formed is 360°.

If the side BC of ABC is produced on both sides,then write the difference between the sum of the exterior angles so formed and /_A

If the base of an isosceles triangle is produced on both sides,prove that the exterior angles so formed are equal to each other.

In a Delta ABC , the sum of exterior angles at B and C is equal to:

Prove that the sum of the three exterior angles of a triangle,formed by producing the sides in order,is 4 right angles.

Exterior angle theorem: If a side of a triangle is produced; the exterior angle so formed is equal to the sum of the two interior opposite angles.

RD SHARMA-PROPERTIES OF TRIANGLES-All Questions
  1. In fig.30, find (i) /A C D , (ii) /A E D

    Text Solution

    |

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

    Text Solution

    |

  3. The side B C of aA B C is produced on both sides. Show that the sum of...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  12. 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

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |