Straight Line Question 152
Question: If the quadrilateral formed by the lines $ ax+by+c=0,a’x+b’y+c’=0,ax+by+c’=0,a’x+b’y+c’=0 $ has perpendicular diagonals, then
Options:
A) $ b^{2}+c^{2}=b{{’}^{2}}+c{{’}^{2}} $
B) $ c^{2}+a^{2}=c{{’}^{2}}+a{{’}^{2}} $
C) $ a^{2}+b^{2}=a{{’}^{2}}+b{{’}^{2}} $
D) none of these
Correct Answer: C
Show Answer
Answer:
Solution:
BETA
