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49cm* 3,14 = 1,54m
65cm * 3,14 = 2,04m
Córka:
23500m : 1,54m ~ 15260 obrotów
Tata:
23500m : 2,04m ~ 11520 obrotów
~ to przybliżenie
Corka 2350000cm:49cm= 8738
Tata 2350000:65=87=2687