What is the supplementary angle of \[{{120}^{o}}\]?

1.	What is the supplementary angle of \[{{120}^{o}}\]?
A.	\[{{20}^{o}}\]
B.	\[{{90}^{o}}\]
C.	\[{{60}^{o}}\]
D.	\[{{180}^{o}}\]
Answer» D. \[{{180}^{o}}\]

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What is the supplementary angle of \[{{120}^{o}}\]?

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