Home
Class 12
MATHS
The vertices of a triangle are at the ve...

The vertices of a triangle are at the vertices of an octagon. The number of such triangles are

A

40

B

45

C

36

D

56

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|63 Videos
  • PERMUTATIONS AND COMBINATIONS

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|63 Videos
  • MATHEMATICAL REASONING

    NEW JOYTHI PUBLICATION|Exercise QUESTION FROM COMPETITIVE EXAMS|23 Videos
  • PRINCIPLES OF MATHEMATICAL INDUCTION

    NEW JOYTHI PUBLICATION|Exercise QUESTIONS FROM COMPETITIVE EXAMS|4 Videos

Similar Questions

Explore conceptually related problems

Two sides of a triangle are along the coordinate axes and the medians through the vertices (other than the origin) are mutually perpendicular. The number of such triangles is/are zero (b) two (c) four (d) infinite

In each of the following vertices of a triangles are given. Find the coordinates of centroid of each triangle. (4, 7), (8, 4), (7, 11)

In each of the following vertices of a triangles are given. Find the coordinates of centroid of each triangle. (3, -5), (4, 3), (11, - 4)

In each of the following vertices of a triangles are given. Find the coordinates of centroid of each triangle. (-7, 6), (2, -2), (8, 5)

A regular polygon of 10 sides is constructed. Triangles are formed joining vertices of the polygon. Find the number of triangles (i) if two sides of trinangle coincide with the sides of polygon. (ii) if only one side of triangle coincide with the side of polygon.

The points (-a ,-b),(a , b),(a^2,a b) are (a) vertices of an equilateral triangle (b) vertices of a right angled triangle (c) vertices of an isosceles triangle (d) collinear

Two vertices of a triangle are (5,-1) and (-2,3) If the orthocentre of the triangle is the origin, find the coordinates of the third point.

If the vertices of a triangle have rational coordinates, then prove that the triangle cannot be equilateral.

Two vertices of a triangle are (4,-3) & (-2, 5) . If the orthocentre of the triangle is at (1,2) , find coordinates of the third vertex .

The vertices of a triangle have integer co- ordinates then the triangle cannot be

NEW JOYTHI PUBLICATION-PERMUTATIONS AND COMBINATIONS-EXERCISE
  1. The number of ways in which 12 people may be divided into three sets o...

    Text Solution

    |

  2. The number of ways in which 10 people can be assigned to two triple an...

    Text Solution

    |

  3. The vertices of a triangle are at the vertices of an octagon. The numb...

    Text Solution

    |

  4. The number of rectangles in the following figure is

    Text Solution

    |

  5. The number of ways in which 11 identical pencils can be distributed am...

    Text Solution

    |

  6. The number of positive integral solutions of the equation x + y + z = ...

    Text Solution

    |

  7. The number of whole number solutions of x + y + z = 20 is

    Text Solution

    |

  8. A={(x,y,z):x,y,zinNandx+y+z=12}. The number of elements in A is

    Text Solution

    |

  9. A box contains two white balls, three black balls and four balls. In...

    Text Solution

    |

  10. The number of ways in which 21 objects can be grouped into three group...

    Text Solution

    |

  11. The number of ways in which a couple can sit around a table with 6 gue...

    Text Solution

    |

  12. A tea party is arranged for 16 people among two sides of a long table ...

    Text Solution

    |

  13. There are 3 copies each of 4 different books. The number of ways in wh...

    Text Solution

    |

  14. The number of ways in which we can choose two positive integers from 1...

    Text Solution

    |

  15. The number of positive integral solutions of the equation xyz = 30 is

    Text Solution

    |

  16. The total number of ways of selecting 3 balls from a bag containing 7 ...

    Text Solution

    |

  17. If a set of m paralled lines intersect another set of n parallel lines...

    Text Solution

    |

  18. The number of 3 digit number locks having none of their digits repeate...

    Text Solution

    |

  19. m' men and 'n' women are to be seated in a row so that no two women si...

    Text Solution

    |

  20. There are 'n' different books and 'p' copies of each. The number of wa...

    Text Solution

    |