Question

In a A ABC the bisector of <C intersect AB in D. IF AD=3. AB = 7, AC = 9, then BC = ...
(A) 12 (B) 21 (C) 27/4 (D) 27/7

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Answer 1

Answer:

it's 21 I am sureeeeeeee

Answer 2

Answer:

I am sure that answer is 12

Step-by-step explanation:

AC/BC=AD/BD=9/x=3/4

$9 \times 4 = 3x$

36/3=x=12

by theoram of bisector of an angle of an triangle