given that AB//CD.find the values of unknown each of the following figures
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Since one side of the quadrilateral is parallel
therefore it is a Trapezium
Adjacent angles of a trapezium always sum upto 180°.
EAC + AED = 180°
AED = 111°
EDC + DCA =180°
DCA = 97°
BED + DEA = 180° (angles in a linear pair)
DEA= 69°
DCE + DCA = 180° (angles in a linear pair)
DCE=83°
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