A) \[30{}^\circ \]
B) \[45{}^\circ \]
C) \[60{}^\circ \]
D) \[90{}^\circ \]
Correct Answer: A
Solution :
[a]\[\angle i=\angle r={{30}^{o}}\] |
\[\therefore \] \[\angle OIQ={{60}^{o}}\] |
\[\therefore \] \[IOQ={{90}^{o}}-{{60}^{o}}={{30}^{o}}\] |
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