1.

In a triangle ABC, the internal bisector of the angle A meets BC at D. If AB = 4, AC = 3 and ∠A = 60°, then length of AD is :

A. $2\sqrt 3 $$
B. $\frac{{12\sqrt 3 }}{7}$$
C. $\frac{{15\sqrt 3 }}{8}$$
D. $\frac{{6\sqrt 3 }}{7}$$
E. one of these
Answer» C. $\frac{{15\sqrt 3 }}{8}$$


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