Home
Class 11
MATHS
The number of diagonals that can be draw...

The number of diagonals that can be drawn by joining the vertices of an octagon is

A

28

B

48

C

20

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    OMEGA PUBLICATION|Exercise Important Questions from Miscellaneous Exercise|8 Videos

  • MATHEMATICAL REASONING

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS |10 Videos

  • PRINCIPLE OF MATHEMATICAL INDUCTION

    OMEGA PUBLICATION|Exercise Multiple Choice Questions|10 Videos

Similar Questions

Explore conceptually related problems

4 points out of 11 points in a plane are collinear. Number of different triangles that can be drawn by joining them, is a. 165 b. 161 c. 152 d. 159

Find the number of diagonals of a : octagon .

The number of triangles that can be formed with 10 points as vertices n of them being collinear, is 10. Then n is a. 3 b. 4 c. 5 d. 6

There are 12 points in a plane in which 6 are collinear. Number of different straight lines that can be drawn by joining them, is a.51 b.52 c.132 d.18

The number of diagonals of a regular decogon are:

Find the number of diagonals of a : pentagon .

The number of straight lines that can be formed by joining 20 points of which 4 points are collinear is:

The number of perpendicular that can be drawn from a point not on the line are

Find the number of different signals that can be generated by arranging at least 2 flags in order (one below the other) on a vertical staff, if five flags are available.

The number of diagonals in a convex polygon with number of sides 4 are:

OMEGA PUBLICATION-PERMUTATIONS AND COMBINATIONS-Multiple Choice Questions (MCQs)
  1. Seven women.and seven men are to sit around a circular table, such tha...

    Text Solution

    |

  2. In how many ways can 5 different beads be arranged to form a necklace?

    Text Solution

    |

  3. The value of ""^(15)C(11)+""^(15)C(10) is equal to

    Text Solution

    |

  4. If \ ^(43)C(r-6)=\ ^(43)C(3r+1)\ then the value of r is

    Text Solution

    |

  5. ""^nCr+2^nC(r+1)+""^nC(r+2) is equal to (2 le r le n)

    Text Solution

    |

  6. Every body in a room shakes hand with every body else. The total numbe...

    Text Solution

    |

  7. There are n points in a plane of which p points are collinear. How man...

    Text Solution

    |

  8. There are n points in a plane of which p points are collinear. How man...

    Text Solution

    |

  9. The number of diagonals that can be drawn by joining the vertices of a...

    Text Solution

    |

  10. A polygon has 44 diagonals. The number of its sides is

    Text Solution

    |

  11. The value of ""^8P7 is

    Text Solution

    |

  12. P(n, 6) = 3 P(n, 5), then n is equal to

    Text Solution

    |

  13. If 2 ""^nP3 = ""^(n+1)P3, then n is equal to

    Text Solution

    |

  14. The value of ""^nPr, and ""^nCr will be equal when

    Text Solution

    |

  15. (C(9,7))/(C(9,5))=?

    Text Solution

    |

  16. The numbers of diagonals in an n sided figure is equal to

    Text Solution

    |

  17. If ""^(35)C(n+7)=""^(35)C(4n-2) then all the values of n are given by

    Text Solution

    |

  18. Ashok, Usha, Rani, Sonu are to give speeches in a class. The teacher c...

    Text Solution

    |

  19. How many words can be formed from the letters of the word 'COMMITTEE'?

    Text Solution

    |

  20. in how many ways can 5 red and 4 white balls be draw from a bag contai...

    Text Solution

    |