" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
πr² =1089π /:π
r=√1089
r=33
d=2r
d=2*33
d=66cm srednica
r1=3,5cm
O=2πr1
O=2*3,5*22/7
O=22cm obwód walka
66cm:22cm=3 walek obróci sie 3 razy