" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
obw koła = 2πr=2*3,14*30=188,4 cm
2000*188,4 =376800 cm= 3768 m = 3,768 km droga ktora pokonało ko lo