Three Dimensional Geometry Question 75
Question: If the projections of a line on the co-ordinate axes be 2, ?1, 2, then the length of the lines is
Options:
A) 3
B) 4
C) 2
D) $ \frac{1}{2} $
Show Answer
Answer:
Correct Answer: A
Solution:
$ r=\sqrt{4+1+4}=3 $ .