Home
Class 12
MATHS
A(0,-1,-2), B(3,1,4) and C(5,7,1) are ve...

`A(0,-1,-2), B(3,1,4)` and `C(5,7,1)` are vertices of `DeltaABD` then find the measure of `angleA`.

Text Solution

Verified by Experts

The correct Answer is:
`(pi)/(4)`
Promotional Banner

Topper's Solved these Questions

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise EXERCISE-10.1|5 Videos

  • VECTOR ALGEBRA

    KUMAR PRAKASHAN|Exercise EXERCISE-10.2|21 Videos

  • THREE DIMENSIONAL GEOMETRY

    KUMAR PRAKASHAN|Exercise PRACTICE PAPER -11|16 Videos

Similar Questions

Explore conceptually related problems

A(-2, 1), B(2, 3) and C(-2, -4) are verticies of Delta ABC . Find measure of angle B .

A (1, -1, -3), B(2, 1, -2) and C(-5, 2, -6) are the verticies of DeltaABC . Find co-ordinates of point D, if bisector of angleA intersects bar(BC) at point D.

A(1, 1, 2), B(4, 3, 1) and C(2, 3, 5) are vertices of a triangle ABC. The vector along the bisector angleA is …………..

A(3,-1),B(2,3) and C(5,1) are given then m angleA = ………

If A(-5, 7), B(-4, -5) , C(-1, -6) and D(4,5) are the vertices of a quadrilateral, find the area of the quadrilateral ABCD

If A (11,7) , B (-1, k ) and C (5, -1) are the vertices of DeltaABC and m angleACB =pi/2 then what is k ?

Let A(1, 2, 3), B(0, 0, 1), C(-1, 1, 1) are the vertices of a DeltaABC .The equation of median through C to side AB is

A(1,7), B(2,4) and C(k,5) are the vertices of a right triangle . Find k (1) if angle A = 90^(@) (2) if angle B = 90^(@) and (3) if angle C = 90^(@)

If the points A(-1, -4) , B(b,c) and C(5,-1) are collinear and 2b + c = 4 , find the values of b and c.

The vertices of a triangle are A(1,1,2), B (4,3,1) and C (2,3,5). The vector representing internal bisector of the angle A is