Jawabanmu

2014-08-24T11:21:26+07:00
10. a.pake pitagoras,  \sqrt{ab^2+cd^2} = 10m
11. skala = 3:7
     selisih = 16dm

panjang sisi segitiga kecil =  \frac{3}{7-3}.16dm =  \frac{3}{4} 16dm = 3.4dm = 12dm
panjang sisi segitiga besar = \frac{7}{7-3}.16dm = \frac{7}{4} 16dm = 7.4dm = 28dm