Odpowiedzi

2010-01-10T15:03:31+01:00
2*4+2*6=20 cm
6/20*100%=30%
4/20*100%=20%
2010-01-10T15:05:55+01:00
2 x 6cm + 2 x 4cm = 20cm

20 cm = 100% I :5
4cm = 25% I x3
12cm = 75% I :2
6 cm = 37.5%


4cm = 25%
6cm = 37.5%

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