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Mathematics 12 Online
OpenStudy (anonymous):

@jim_thompson5910 Could you check my answer please? I got B.

OpenStudy (calculusfunctions):

Hint: Opposite angles of a quadrilateral are equal.

OpenStudy (calculusfunctions):

es, your answer (B) is the correct one.

OpenStudy (anonymous):

:DD ding, ding,ding!

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