Find the Measure of the Missing Angle(s) $61^\circ$ B) $71^{\circ}$ C) $81^{\circ}$ D) $66^{\circ}$

Multiple Choice

Find the measure of the missing angle(s) .
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A) $61^\circ$
B) $71^{\circ}$
C) $81^{\circ}$
D) $66^{\circ}$