tolong di kerjakan ya 1-4 Mtk

1. [tex] \frac{tg}{ts} = \frac{lg}{ls}
  \frac{10cm}{ts} = \frac{4cm}{1000cm}
  4ts = 10000 ts =
\frac{10000}{4}
 ts = 2500cm ts
= 25m[/tex]
2. DF=AB = 5cm
    DE=AC = 6cm