geometrie

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cris
Posts: 2
Joined: Sun Feb 28, 2010 1:13 pm

geometrie

Post by cris »

Ce lungime a parcurs un biciclist daca roata bicicletei a facut 3000 de rotatii si are un diametru de 0,5 metri?
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andreiilie
Euclid
Posts: 38
Joined: Mon May 24, 2010 4:45 pm

Post by andreiilie »

la o rotatie a facut 2pi*raza , deci in total 2 pi*raza * nr de rotatii
"Orice gandire corecta e matematica"
ONM Slatina -cls a VI-a -2009
ONF Constanta - cls a VII-a -2010
ONM Iasi - cls a VII-a -2010
La inceput de cariera:).
Clasa a 8-a M, Colegiul National Mihai Viteazul Ploiesti
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