Jawabanmu

2014-08-26T10:55:24+07:00
DE/16=9/12
DE=16.9/12=12cm
1 4 1
2014-08-26T11:03:09+07:00
DE/BC = AE/EC
x/16 = 3/9
9x = 48
x = 48:9 = 5,33 (DE)
hehehe maaf ya kalo salah.. maaf bgt