ABCD is a quadrilateral. Forces AB, CB, CD and DA act along its sides. What is their resultant?

ABCD is a quadrilateral. Forces vec(AB), vec(CB), vec(CD) and vec(DA) act along its sides. What is their resultant ?

ABCD is a quadrilateral. Force vec(AB), vec(CB), vec(CD) and vec(DA) act along its sides. What is their resultant ?

ABCD is a quadrilateral. Is AB+ BC + CD+ DA gt AC+ BD ?

ABCD is a quadrilateral. Is AB+BC +CD + DA gt AC + BD ?

ABCD is a quadrilateral. Is AB+BC+CD+DA > AC+BD ?

ABCD is a quadrilateral. Is AB+BC+CD+DA>AC+BD?

ABCD is a quadrilateral.Is AB+BC+CD+DA>AC+BD?

ABCD is quadrilateral. Is AB+BC+CD+DA < 2(AC+BD) ?

ABCD is quadrilateral.Is AB+BC+CD+DA<2(AC+BD)?

If ABCD is a quadrilateral such that AB = AD and CB = CD , then prove that AC is the perpendicular bisector of BD .