Jawabanmu

2014-08-25T15:33:10+07:00
16 : 2000000
8:1000000
4:500000
2:250000
1:125000
1 1 1
2014-08-25T15:40:22+07:00
16cm:20km
=16cm:2000000cm
=4:500000
=1:125000