CBSE Class 10 Answered
the diagonals of aquadrilateral abcd bisect each other at the point osuch that ao/bo=co/do. show th
Asked by | 13 Aug, 2009, 09:09: PM
Expert Answer
consider triangles AOB,COD
AO/CO=BO/DO...given
now,
angle AOB=angle DOC..Vertically opp angles
so
triangle AOB similar to triangle COD....SAS rule
angle OAB= angle OCD....corr anglesof similar triangles
so
AD parallel to BC... since alt angles are equal.
ABCD is a trapezium as one pair of opp sides is parallel
Answered by | 14 Aug, 2009, 08:00: AM
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