SOLUTION: ABCD is a cyclic quadrilateral unscribed in a circle BC, CD, AB//DC and angle DBC=50, find angle ADB

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Question 1180878: ABCD is a cyclic quadrilateral unscribed in a circle BC, CD, AB//DC and angle DBC=50, find angle ADB
Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
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In any cyclic quadrilateral, the sum of opposite angles is 180 degrees.