diagonalsACb Fig. 9.25,aBand BD of quadrilateralrect at O such that OB – InterviewSolution

1.	diagonalsACb Fig. 9.25,aBand BD of quadrilateralrect at O such that OB = OD,8 CD, then show that:ar(DOC) ar (AOB)ar(DCB)-ar(ACB)DAIICB or ABCD is a parallelogram.r: From D and B, draw perpendiculars to AC.]D) DACB or ABCD is a parallelogramHintFig. 9.25
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