Question 152 (ii)
In the given figure, ∠1=∠2 and ∠3=∠4 Show that AD = AB and CD = CB
∠1=∠2 [ given ] ∠3=∠4 [given ] AC = AC [ Common side ] By ASA congruence criterion, ΔADC≅ΔABC
AD = AB [by CPCT] CD = CB [by CPCT]