Lines PQ and RS intersect at O. If \[\angle POS=2\,\,\angle SOQ\] ,then the four angles at O are

\[60{}^\circ ,\text{ }90{}^\circ ,\text{ }90{}^\circ ,\text{ }120{}^\circ \]

\[30{}^\circ ,\text{ }30{}^\circ ,\text{ }120{}^\circ ,\text{ }180{}^\circ \]

\[60{}^\circ ,\text{ }60{}^\circ ,\text{ }120{}^\circ ,\text{ }120{}^\circ \]

\[30{}^\circ ,\text{ }60{}^\circ ,\text{ }90{}^\circ ,\text{ }180{}^\circ \]

Lines PQ and RS intersect at O. If \[\angle POS=2\,\,\angle SOQ\] ,the

1.	Lines PQ and RS intersect at O. If \[\angle POS=2\,\,\angle SOQ\] ,then the four angles at O are
A.	\[30{}^\circ ,\text{ }30{}^\circ ,\text{ }120{}^\circ ,\text{ }180{}^\circ \]
B.	\[60{}^\circ ,\text{ }60{}^\circ ,\text{ }120{}^\circ ,\text{ }120{}^\circ \]
C.	\[60{}^\circ ,\text{ }90{}^\circ ,\text{ }90{}^\circ ,\text{ }120{}^\circ \]
D.	\[30{}^\circ ,\text{ }60{}^\circ ,\text{ }90{}^\circ ,\text{ }180{}^\circ \]
Answer» C. \[60{}^\circ ,\text{ }90{}^\circ ,\text{ }90{}^\circ ,\text{ }120{}^\circ \]

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Lines PQ and RS intersect at O. If \[\angle POS=2\,\,\angle SOQ\] ,then the four angles at O are

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