Home
Class 14
MATHS
Vertices of a triangle are A(3, 1, 2)...

Vertices of a triangle are `A(3, 1, 2), B(1, -1, 2)` and `C(2, 1, 1)`. Area of the triangle will be :

A

`(1)/(sqrt2)` units

B

1 units

C

`(3)/(sqrt2)` units

D

2 units

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • VECTOR

    PUNEET DOGRA|Exercise Prev Year Questions|134 Videos

  • TRIGONOMETRY

    PUNEET DOGRA|Exercise PREV YEAR QUESTIONS|163 Videos

Similar Questions

Explore conceptually related problems

The vertices of a Delta ABC are A (2, 3, 1), B (-2, 2, 0) and C(0, 1, -1) . What is the area of the triangle?

The vertices of a triangle are A(1,-1,2),B(6,11,2),C(1,2,6) then cos A

If the vertices of a triangle ABC are A (-4, -1), B (1,2) and C (4, -3), then the coordinates of the circumcentre of the triangle are,

In the triangle with vertices A(1, -1, 2), B(5, -6, 2) and C(1, 3, -1), find the altitude n = |BD|.

the area of triangle whose vertices are (1,2,3),(2,5-1) and (-1,1,2) is

Find the area of the triangle whose vertices are A(3,-1,2),B(1,-1,-3) and C(4,-3,1)

area of the triangle with vertices A(3,4,-1), B(2,2,1) and C(3,4,-3) is :

Find the area of the triangle if vertices are (1,1), (2,2) and (0,1)

PUNEET DOGRA-VECTOR-Prev Year Questions
  1. The vertices of a Delta ABC are A (2, 3, 1), B (-2, 2, 0) and C(0, 1, ...

    Text Solution

    |

  2. The vertices of a Delta ABC are A (2, 3, 1), B (-2, 2, 0) and C(0, 1, ...

    Text Solution

    |

  3. Vertices of a triangle are A(3, 1, 2), B(1, -1, 2) and C(2, 1, 1). ...

    Text Solution

    |

  4. Let |a|=7, |b|=11, |a+b|=10 sqrt3 What is |a-b| equal to ?

    Text Solution

    |

  5. Let |a|=7, |b|=11, |a+b|=10 sqrt3 What is the angle between (a+b) an...

    Text Solution

    |

  6. If the angle between the vectors hat(i)- m hat(j) and hat(j) + hat(k) ...

    Text Solution

    |

  7. The vectors hat(i)- 2x hat(j) - 3y hat(k) and hat(i) + 3x hat(j) + 2y ...

    Text Solution

    |

  8. What is the value of p for which the vector vec(p) (2 hat(i)- hat(j) +...

    Text Solution

    |

  9. If vec(a) = 2hat(i) + 2hat(j) + 3hat(k), vec(b)= - hat(i) + 2hat(j) + ...

    Text Solution

    |

  10. What is the vector perpendicular to both the vector hat(i) - hat(j) an...

    Text Solution

    |

  11. If the position vector of the vertices of a triangle are hat(i)-hat(j)...

    Text Solution

    |

  12. For any vector alpha what (alpha . hat(i)) hat(i) + (alpha.hat(j)) hat...

    Text Solution

    |

  13. Which one of the following vectors is normal to the vector hat(i) + ha...

    Text Solution

    |

  14. If theta is the angle between the vectors 4 (hat(i)- hat(k)) and hat(i...

    Text Solution

    |

  15. If the magnitude of vec(a) xx vec(b) equals to vec(a).vec(b) then whic...

    Text Solution

    |

  16. If |vec(a)| = sqrt2, |vec(b)|=sqrt3 and |vec(a) + vec(b)|= sqrt6, then...

    Text Solution

    |

  17. If vec(beta) is perpendicular to both vec(alpha) and vec(gamma) where ...

    Text Solution

    |

  18. What is the value of lamda for which (lamda hat(i) + hat(j)- hat(k)) x...

    Text Solution

    |

  19. The vector 2 hat(j)- hat(k) lies

    Text Solution

    |

  20. Simplify:- 3500 ÷ (3030 - 2855) = ?

    Text Solution

    |