If the coordinates of the points `A,B,C,D be (1,2,3),(4,5,7),(4,-3,6) and (2,9,2)` respectively then find the angle between AB and CD.

If the coordinates of the points A, B, C, D be (1, 2, 3) , (4, 5, 7) , ( 4, 3, 6) and (2, 9, 2) respectively, then find the angle between the lines AB and CD.

If the coordinates of the points A ,B ,C ,D are (1,2,3),(4,5,7),(-4,3,-6) and (2,9,2), then find the angle between A B and C Ddot

If A,B,C,D are (2,3,-1),(3,5,-3),(1,2,3),(3,5,7) respectively, then the angel between AB and CD, is

If the coordinates of the points A ,\ B ,\ C ,\ D\ b e\ (1,\ 2,\ 3),\ (4,\ 5,\ 7),\ (-4,\ 3,\ -6)\ a n d\ (2,\ 9,\ 2) respectively then find the angle between the lines A B\ a n d\ C Ddot

The coordinates of the points A, B, C are (0, 4), (2, 5) and (3 , 3) respectively. Prove that AB=BC and the angle ABC is a right angle.

The coordinates of points A,B,C and D are (-3, 5), (4, -2), (x, 3x) and (6, 3) respectively and Area of (Delta ABC)/(Delta BCD)=(2)/(3) ,find x.

ABCD is a parallelogram. If the coordinates of A ,\ B ,\ C\ a r e\ (2,3),\ (1,4)a n d\ (0,-2) respectively, find the coordinates of D.

The coordinates of A, B, C, D are (6, 3), (-3, 5), (4, -2) and (x, 3x) respectively. If Area of (DeltaDBC)/(DeltaABC ) = 1/2 , find x

The centroid of a triangle ABC is at the point (1,1,1). If the coordinates of A and B are (3,-5,7) and (-1,7,-6) respectively, find the coordinates of the point C.

The centroid of a triangle ABC is at the point (1, 1, 1) . If the coordinates of A and B are (3, 5, 7) and (1, 7, 6) , respectively, find the coordinates of the point C.