Question

ABCD is a quadrilateral in which a d is equals to b c and dab is equal to Cba prove that triangle ABD is congruent to triangle BAC BD is equals to AC abd is equal to bac​

Answer 1

in in triangle abc D and b a c

BA is common

ad=bc

angle dab=angle abc

sotriangle ABC congruent triangle BAC by SaS congruence

so bd=AC

angel abd=angle bac

by c.p.c.t