August 2018 2 22 Report
Zadanie. Beczka ma kształt walca 1,2 m i promieniu podstawy 50 cm. Ile litrów farby zmieści się w 5 takich beczkach?

potrzebne wzory:
V = πr² * H
Pc = 2πr ( r+H )
Pb = 2πr * H
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