If $\angle ABC= 65^{\circ}$. Measure the supplementary angle of $\angle ABC$.
Given: $\angle ABC=65^{\circ}$.
To do: To find the supplementary angle of $\angle ABC$.
Solution:
As given, $\angle ABC=65^{\circ}$
Therefore, Supplementary angle of $\angle ABC=180^{\circ}-65^{\circ}=115^{\circ}$
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