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1. |
In the given figure above,\[\angle \mathbf{AOB}=\mathbf{4}{{\mathbf{8}}^{{}^\circ }}\], AC and OB Intersect each other at right angles. What is the measure of\[\angle \mathbf{OBC}\] (where, O is the centre of the circle)? |
A. | \[{{44}^{{}^\circ }}\] |
B. | \[{{46}^{{}^\circ }}\] |
C. | \[{{66}^{{}^\circ }}\] |
D. | \[{{78.5}^{{}^\circ }}\] |
Answer» D. \[{{78.5}^{{}^\circ }}\] | |