Diagonals AC and BD of trapezium ABCD in which AB ∥ DC, intersect each other at O. Prove that the triangle AOD is equal in area to triangle BOC.
Diagonals AC and BD of a trapezium ABCD with AB ∥ DC intersect each other at O. Prove that ar (△AOD) = ar (△BOC). [1 MARK]
In the adjoining figure,ABCD is a trapezium in which AB||DC and its diagonals AC and BD intersect at O.
Prove that ar(△AOD)=ar(△ BOC).