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In the given figure, if OQ = QR, then the value of m is:
In $$\triangle\ $$OQR,
OQ = QR
$$=$$> $$\angle\ $$ORQ = $$\angle\ $$QOR
$$=$$> $$n^{\circ\ }$$ = $$\angle\ $$QOR
$$=$$> $$\angle\ $$QOR = n$$^{\circ\ }$$
In $$\triangle\ $$OQR,
$$\angle\ $$ORQ + $$\angle\ $$QOR + $$\angle\ $$OQR = 180$$^{\circ\ }$$
$$=$$> n$$^{\circ\ }$$ + n$$^{\circ\ }$$ + $$\angle\ $$OQR = 180$$^{\circ\ }$$
$$=$$> $$\angle\ $$OQR = 180$$^{\circ\ }$$- 2n$$^{\circ\ }$$
$$\angle\ $$OQP + $$\angle\ $$OQR = 180$$^{\circ\ }$$
$$=$$> $$\angle\ $$OQP + 180$$^{\circ\ }$$- 2n$$^{\circ\ }$$ = 180$$^{\circ\ }$$
$$=$$> $$\angle\ $$OQP = 2n$$^{\circ\ }$$
In $$\triangle\ $$OPQ,
OQ = OP
$$=$$> $$\angle\ $$OPQ = $$\angle\ $$OQP
$$=$$> $$\angle\ $$OPQ = 2n$$^{\circ\ }$$
In $$\triangle\ $$OPR,
$$\angle\ $$POS is the external angle at point O
$$=$$> $$\angle\ $$POS = $$\angle\ $$OPR + $$\angle\ $$ORP
$$=$$> $$\angle\ $$POS = $$\angle\ $$OPQ + $$\angle\ $$ORP
$$=$$> m$$^{\circ\ }$$ = 2n$$^{\circ\ }$$ + n$$^{\circ\ }$$
$$=$$> m$$^{\circ\ }$$ = 3n$$^{\circ\ }$$
Hence, the correct answer is Option A
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