1.

Three wires of length\[{{l}_{1}}\]form a triangle surmounted by another circular wire, If \[{{l}_{2}}\] is the diameter and\[{{l}_{1}}\], then the angle between \[{{l}_{2}}\] and \[{{l}_{3}}\] will be

A. \[30{}^\circ \]
B. \[60{}^\circ \]
C. \[45{}^\circ \]
D. \[90{}^\circ \]
Answer» C. \[45{}^\circ \]


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