A) \[30{}^\circ \]
B) \[15{}^\circ \]
C) \[45{}^\circ \]
D) \[60{}^\circ \]
Correct Answer: B
Solution :
\[\because RS=SQ\] \[\therefore \] \[\angle QRS=\frac{1}{2}(180{}^\circ -120{}^\circ )=30{}^\circ \] Hence, \[\angle QRS=\frac{1}{2}(180{}^\circ -150{}^\circ )=15{}^\circ \]\[(\because PR=RQ)\]You need to login to perform this action.
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