Let (1,2,0) , B(2,0,4) , C (1,1,2) & D(0,1,3) be four points in space then the length of projection of line segment AB on the line C D is

If points A (2, 4, 0), B(3, 1, 8), C(3, 1, -3), D(7, -3, 4) are four points then projection of line segment AB on line CD.

the equationof a plane is 2x-y-3z=5 and A(1,1,1),B(2,1,-3),C(1,-2,-2) and D(-3,1,2) are four points. Which of the following line segments are intersects by the plane? (A) AD (B) AB (C) AC (D) BC

Let A(1, 1, 1), B(3, 7, 4) and C (-1, 3, 0) be three points in a plane. The co-ordinates of the foot of perpendicular drawn from point C to the line segment AB is

A(-2,3,4), B(1,1,2),C(4,-1,0) are three points. Find the Cartesian equations of line AB and show that points A,B,C are collinear.

A(0,5,6),B(1,4,7),C(2,3,7) and D(3,4,6) are four points in space. The point nearest to the origin O(0,0,0) is (A) A (B) B (C) C (D) D

If for a gt 0, the feet of perpendiculars from the points A(a, - 2a, 3) and B(0,4,5) on the plane Ix +my+nz=0 are points c(0, -a, -1) and D respectively, then the length of line segment CD is equal to :