Pairs of congruent sides and angles, respectively.

Corresponding angles are congruent.

Class 9th, EXERCISE 7.1, Page No: 118.

Questions No:2.

NCERT Book, Chapter TRIANGLES Question Answer.

Session 2023-2024 are based on CBSE Board.

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In ΔABD and ΔBAC,

AD = BC [∵ Given]

∠DAB = ∠CAB [∵ Given]

AB = AB [∵ Common]

Hance, ΔABD ≅ ΔBAC [∵ SAS Congruency Rule]

(ii) BC = BD [∵ Corresponding parts of congruent triangles are equal]

(iii) ∠ABD = ∠BAC [∵ Corresponding parts of congruent triangles are equal]