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In the given figure AE=BC and AE || BC and the three sides AB , CD and ED are equal in length , If $\;m \angle{A}=102^{0}C\;$ , find the measures of $\;\angle{ABC}\;$ :

$(a)\;138^{0}C\qquad(b)\;162^{0}C\qquad(c)\;88^{0}C\qquad(d)\;None\;of\;these$

Answer : $\;162^{0}C$
If $\;m \angle{A}=102^{0}C\;$ , the measures of $\;\angle{ABC}\;$ : $162^{0}C$