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Mathematics 16 Online
OpenStudy (anonymous):

In the diagram the points A,B,C and D lie on a circle with centre O. AOD is a diameter, OB is parallel to DC and ange BOD = 140°. Find : x,y,z and t

OpenStudy (anonymous):

|dw:1398176184456:dw|

OpenStudy (aravindg):

Firs find <AOB.

OpenStudy (anonymous):

|dw:1398251325329:dw|

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