Class 10 Math | Chapter 6 Triangles | Ex 6.3 Q no 11 NCERT Solution | Triangles Similarity Criteria | In Fig. 6.40, E is a point on side CB produced of an isosceles triangle ABC with AB = AC. If AD BC and EF AC, prove that ABD ~ ECF. NCERT Solution Class 10 Mathematics Chapter 6 Exercise 6.3 Question no 11 NCERT CBSE 2026 #education #cbseclass10 #cbseboard #cbse2025_26 #cbse2026 ##ncertsolution #ncert #class10th #cbseclass10 #cbse10maths #cbseclass10mathssolutions #cbseclass10 #viral #viral video #arearelatedtocircles #ap #class10mathncertsolution #exercise6.3solution #class10exercise6.3 #viral #cbse2026 #cbse2026boardexam #class10mathex6.3solution #class10mathchapter6solution