help me please. disurih cari CD atau X.... :D

jawab
AB = 2 + 4= 6

ΔCAB sebangun  ΔEDB
AB  ~ DB
BC ~  BE

BC /AB = BE/DB
BC /6 =  4/3
BC = 6(4)/3 = 8

BC = BD + DC
8 = 3 + DC
DC = 8-3
DC = 5
DC =x = 5