Odpowiedzi

2010-02-03T18:58:28+01:00
38dm=380cm
a=70cm
Ob=380-(70*2)=380-140=240
2010-02-03T18:59:05+01:00
38dm=380cm
70cm*2=140cm
380cm-140cm=240cm
240cm:2=120cm
2010-02-03T19:00:54+01:00
Obw = 38 dm = 380 cm
1 bok = 70 cm
2 bok = (380 cm - (2 * 70 cm)): 2 = (380 - 140): 2 = 240 : 2 = 120 cm = 12 dm