SSS congruence rule = side - side - side
CPCT : Corresponding parts of congruent triangles
in ∆ABM and ∆ACM
so, ∆ABM ≅ ∆ACM by SSS congruency rule
_______________________(ii) find ∠CAMwe have, ∆ABM ≅ ∆ACM
➪ ∠CAM =∠BAM (by CPCT)
_______________________(iii) find ∠ABMwe have, ∆ABM ≅ ∆ACM
➪ ∠ABM =∠ACM (by CPCT)
________________________(iv) Find ∠AMCnow, in ∆AMC
★ by using angles sum property of a triangle