Triangles

Asked by rinki94 | 13th Jul, 2009, 05:59: PM

Expert Answer:

let BD=X

then,

 CD=9-X

we know the result that,

 the angle bisector of an angle divides the opp side in the ratio of the sides containing the angle.

so,

 BA/AC=BD/DC

substituting the values we get,

12/15=x/(9-x)

solvin we get,

x=4

so BD=4,CD=5

Answered by  | 14th Jul, 2009, 07:58: AM

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