Q : 10 Diagonals AC and BD of a trapezium ABCD with intersect each other at O. Prove that
.
We have a trapezium ABCD such that AB || CD and it's diagonals AC and BD intersect each other at O
ABD and
ABC are on the same base AB and between same parallels AB and CD
ar(
ABD) = ar (
ABC)
Now, subtracting AOB from both sides we get
ar ( AOD) = ar (
BOC)
Hence proved.