Three Dimensional Geometry Question 230
Question: The straight lines $ \frac{x-1}{1}=\frac{y-2}{2}=\frac{z-3}{3} $ and $ \frac{x-1}{2}=\frac{y-2}{2}=\frac{z-3}{-2} $ are
Options:
A) Parallel lines
B) Intersecting at $ 60{}^\circ $
C) Skew lines
D) Intersecting at right angle
Show Answer
Answer:
Correct Answer: D
Solution:
Since $ 2,(1)+2,(2)+(-2),(3)=0. $ Hence lines are intersecting at right angles.
BETA
