Home
Class 12
MATHS
Find the number of diagonals of a polygo...

Find the number of diagonals of a polygon with 12 sides.

Text Solution

Verified by Experts

The correct Answer is:
`=(12(12-3))/(2)`
`=54`
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise LONG ANSWER QUESTIONS|12 Videos

  • PARTIAL FRACTIONS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise EXERCISE- 7|32 Videos

  • PROBABILITY

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise DAM SURE|13 Videos

Similar Questions

Explore conceptually related problems

Find the number of diagonals of a polygon having 20 sides

The number of diagonals in a polygon of 10 sides is

The number oif diagonals of an octagons is

The number of diagonal for an n sided polygon with 10 sides is

The number of diagonals for an n sided polygon is

The polygon in which the number of diagonals is equal to the number of sides is

Find the number of sider of the polygon having 90 diagonals.

The number of sides of a polygon having diagonals 44 is

VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-PERMUTATIONS AND COMBINATIONS-TAXTUAL EXERCISES
  1. If ""^(n)P(4)=210, find n.

    Text Solution

    |

  2. If ""^(12)C(r)=495, find the possible values of (r ).

    Text Solution

    |

  3. If ""^(n)P(r)=5040 and ""^(n)C(r)=210, find n and r.

    Text Solution

    |

  4. If ""^(n)C(4)=""^(n)C(6), find n.

    Text Solution

    |

  5. If ""^(17)C(2t+1)=""^(17)C(3t-5), find t.

    Text Solution

    |

  6. If ""^(9)C(3)+""^(9)C(5)=""^(10)C(r) then find r.

    Text Solution

    |

  7. Find the number of ways of forming a committee of 5 members from 6 men...

    Text Solution

    |

  8. Find the number of ways of forming a committee of 5 members from 6 men...

    Text Solution

    |

  9. Prove that for 3 le" r " le n, ""^((n-3))C(r)+.""^((n-3))C((r-1))+3....

    Text Solution

    |

  10. Find the number of ways of selecting 3 girls and 3 boys out of 7 girls...

    Text Solution

    |

  11. Find the number of ways of selecting a committee of 6 members out of 1...

    Text Solution

    |

  12. Find the number of ways of selecting 5 books from 9 different mathemat...

    Text Solution

    |

  13. Find the number of diagonals of a polygon with 12 sides.

    Text Solution

    |

  14. If n persons are sitting in a row, find the number of ways of selectin...

    Text Solution

    |

  15. Find the number of ways of giving away 4 similar coins to 5 boys if ea...

    Text Solution

    |

  16. Prove thaty (""^(4n)C(2n))/(""^(2n)C(n))=(1.3.5…..(4n-1))/({1.3.5…..(2...

    Text Solution

    |

  17. Find the numbers of ways of selecting a cricket team of 11 players fro...

    Text Solution

    |

  18. If 5 vowels and 6 consonants are given, then how many 6 letter words c...

    Text Solution

    |

  19. Find the number of ways in which 12 things be (i) divided into 4 equal...

    Text Solution

    |

  20. A class contains 4 boys and g girls. Every Sundy, five students with a...

    Text Solution

    |