Answer
m$\angle$D=18$^{\circ}$
Work Step by Step
ABC=AC+36
AC+ABC=360
AC=360-ABC
AC=360-AC-36
2AC=324
AC=162
ABC=162+36
ABC=198
m$\angle$D=.5(ABC-AC)
m$\angle$D=.5(198-162)
m$\angle$D=18$^{\circ}$
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