NCERT Exercise 7.1 Q1 - Triangles
Question: In quadrilateral ACBD, AC = AD and AB bisects ∠A (see Fig. 7.16). Show that ∆ABC ≅ ∆ABD. What can you say about BC and BD?
Answer: ∆ABC ≅ ∆ABD by SAS; BC = BD.
Full step-by-step NCERT solution with diagrams on Something by Zero.