tolong jawaban no 5 dan 6 dong....

dik :
AD = 3
BD = 2
BC = 4
AB = AD + BD = 3+2 = 5.

dik : Panjang DE =....?

AB/BC = AD/DE
5/4 = 3/DE
5 DE = 3×4
5 DE = 12
DE = 12/5
DE = 2,4