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Mathematics 9 Online
OpenStudy (anonymous):

Given: AC and BD are diameters. find the missing angle measurements. picture shown below!

OpenStudy (anonymous):

OpenStudy (campbell_st):

1 = 78 angle subtended by the arc AD 3 = 78 vertically opposite 1 2 = 102 supplementary to 1 4 = 102 supplementary to 1 or vertically opposite 2

OpenStudy (anonymous):

OH shoot, I did 1&3=102 and 2&4=78. whoops, thanks so much.

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