September 2018 2 15 Report

Hej to są zadania z II gimnazjum =]

Liczba pi -(π)

1. Obwód koła wynosi 10π. Oblicz pole tego koła.

2. Obwód koła wynosi 6π. Oblicz pole tego koła.

3. Tor wyścigu rowerowego ma kształt okręgu o średnicy 2 km. Rower zawodnika ma koła o promieniu 0,25 m. Ile obrotów musi wykonać koło trgo roweru podczas jednokrotnego przejazdu tym torem ?

4.Tor wyścigu rowerowego ma kształt okręgu o średnicy 1 km. Rower zawodnika ma koła o promieniu 0,5 m. Ile obrotów musi wykonać koło trgo roweru podczas jednokrotnego przejazdu tym torem ?

Daję NAJ =]

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