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A wire is attached from a point A on the ground to the top of a pole BC, making an angle of elevation as $60^\circ$. If AB = $5\sqrt{3}$ m, then length of the wire is
- (a)$10$ m
- (b)$10\sqrt{3}$ m
- (c)$15$ m
- (d)$\frac{5}{2}\sqrt{3}$ m
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Sol. (B) $10\sqrt{3}$ m (1 Mark)