1.

In the given circle, 0 is the centre and\[{{50}^{o}}\]. Then \[{{55}^{o}}\] is equal to

A.  \[{{108}^{o}},{{72}^{o}}\]                               
B.  \[{{72}^{o}},{{36}^{o}}\]
C.  \[{{100}^{o}},{{80}^{o}}\]                   
D.  \[{{144}^{o}},{{36}^{o}}\]
Answer» D.  \[{{144}^{o}},{{36}^{o}}\]


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