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Question

Two lines AB andCD intersect at O such that BC is equal and parallel to AD.
then AB & CD bisect at O.

A
True
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B
False
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Solution

The correct option is A True
Given:

BCAD.

Also in ΔAOD and ΔBOC:

AD=BC......[given]

OAD=OBC......[alternate interior angles]

ODA=OCB......[alternate interior angles]

So, ΔAODΔBOC....[by ASA condition]

Hence OA=OB and OC=OD....[By CPCT]

Hence AB and CD are bisected at O.

1371087_1036624_ans_31bcdccf933046c193be42fbe608745e.png

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