A) AB + BC + CD + DA > AC + BD
B) AB + BC + CD + DA < AC + BD
C) AB + BC + CD + DA= AC + BD
D) AB + BC + CD + DA > AC\[\Delta \]BD
Correct Answer: A
Solution :
\[(AD+AB)>BD\] \[(AB+AC)>AC\] \[(BC+CD)>BD\] and \[(CD+AD)>AC\] \[\therefore \] \[2(AB+BC+CD+DA)>2(AC+BD)\] or \[(AB+BC+CD+DA)>(AC+BD)\]You need to login to perform this action.
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