Diagonal AC and BD of quadrilateral ABCD intersects each other at poin

1.	Diagonal AC and BD of quadrilateral ABCD intersects each other at point O. Prove that AB + BC + CD + AD < 2 (AC + BD).
Answer» Diagonal AC and BD of quadrilateral ABCD intersects each other at point O. Prove that AB + BC + CD + AD < 2 (AC + BD).

Diagonal AC and BD of quadrilateral ABCD intersects each other at point O. Prove that AB + BC + CD + AD < 2 (AC + BD).

Answer»

Diagonal AC and BD of quadrilateral ABCD intersects each other at point O.

Prove that AB + BC + CD + AD < 2 (AC + BD).