Three Dimensional Geometry Question 72
Question: If the co-ordinates of the points $ A,B,C,D $ be (2, 3, ?1), (3, 5, ? 3), (1, 2, 3) and (3, 5, 7) respectively, then the projection of $ AB $ on $ CD $ is
Options:
A) 0
B) 1
C) 2
D) $ \sqrt{3} $
Show Answer
Answer:
Correct Answer: A
Solution:
Since AB and CD are perpendicular, therefore projection of AB on CD is 0.
BETA
