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In a ∆ABC, AD is the bisector of ∠A, meeting side BC at D. If BD = 2.5 cm, AB = 5 cm and AC = 4.2 cm, find DC

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Question taken from RD sharma
Class 10th
Chapter no. 4
Chapter name:- Triangles
Exercise :- 4.3
This is very basic and important questions.

In this question we have been given a ∆ABC,in which AD is the bisector of ∠A, meeting side BC at D.

Also we have that BD = 2.5 cm, AB = 5 cm and AC = 4.2 cm,

Now we have to find DC

 

Understanding and learning CBSE maths
RD sharma, DHANPAT RAI publication

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