1.

In the given figure above, O is the centre of the circle, If \[OA=3cm,AC=3cm\] and OX is perpendicular to AC, \[\angle \mathbf{ABC}\] is equal to?

A. \[{{60}^{{}^\circ }}\]
B. \[{{45}^{{}^\circ }}\]
C. \[{{30}^{{}^\circ }}\]
D. None of these
Answer» D. None of these


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