Q4 of 56 Page 135

In figure, if AB = 3.4 cm, BD = 4 cm, BC = 10 cm, then the value of AC will be:

Given,


AB = 3.4 cm, BD = 4 cm, BC = 10 cm


DC = BC – BD = 10 – 4 = 6 cm


In ΔACB, AD is the internal angle bisector of angle A.


By internal angle bisector theorem,



Putting given values,



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