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P = a2
P = 2500m2
a = Pierwiastek z 2500m2
a = 50m
50 m = 5000cm
1cm : 2000 cm
x cm : 5000 cm
2000cmx = 5000cm / 2000
x = 2,5cm
Ob = 2,5cm * 4 = 10cm
250000 : 2000 = 125cm
125 : 4 = 31,25cm
Mam nadzieje ze jest dobrze
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