In the figure, ABCD is a trapezium in which AB = DC and its diagonals AC and BD intersect at O. Then ar (∆AOD) is equal to
ar (∆COD)
ar (∆BOC)
ar (∆AOD)
ar (∆AOB)
In the figure, ABCD is a trapezium in which AB || DC and its diagonals AC and BD intersect at O. Then ar(∆AOD) is equal to
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).