15. Di,agonals AC and BD of a quadrilateral ABCD intersect at
0 in such a way that ar(AOD) = ar(BOC). Prove that
ABCD is a trapezium.
15. Di,agonals AC and BD of a quadrilateral ABCD intersect at
0 in such a way that ar(AOD) = ar(BOC). Prove that
ABCD is a trapezium.