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If O is a point in the interior of parallelogramABCD, then show that ar of triangle( OAB)+ ar of triangle(OCD)=ar of triangle(OAD) + ar of triangl(OBC).

Answer» If O is a point in the interior of parallelogramABCD, then show that ar of triangle( OAB)+ ar of triangle(OCD)=ar of triangle(OAD) + ar of triangl(OBC).


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