Skala 1 : 200 panjang 5 cm lebar 3 cm hitung skalanya

Js = Jp/s
= 5/1/200
= 5.200 = 1000 cm = 10 m

Js =Jp!/s
= 3/1/200
= 3.200 = 600 cm = 6 m

Luas: 6.10=60