Question extracted from RD sharma of class 10th, Chapter no. 4
Chapter name:- Triangles
Exercise :- 4.2
This is very basic and important questions. And has been asked in several times in exams.
In this question we have been given that D and E are the points on sides AB and AC respectively of a ΔABC
such that DE ∥ BC and BD = CE.
Now we have to Prove that ΔABC is isosceles.
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RD sharma, DHANPAT RAI publication