Q. 22
In a 
, AD is the bisector of 
. If AB = 6 cm, AC = 5 cm and BD = 3 cm„ then DC =
A. 11.3 cm
B. 2.5 cm
C. 3 5 cm
D. None of these.
Answer :
Given AD is the bisector of ∠BAC. AB = 6 cm, AC = 5 cm and BD = 3 cm.
We know that the internal bisector of angle of a triangle divides the opposite side internally in the ratio of the sides containing the angle.
∴ DC = 2.5 cm
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