Odpowiedzi

2009-11-10T15:05:26+01:00
L = srednica
l = 1/2d
l = 1/2 12
l= 6
2009-11-10T15:06:39+01:00
Wzór:
l=2πr

2π*6≈2*3,14*6≈37,68
2009-11-10T15:07:42+01:00
L=πd=π×12=12π
12π≈12×3,14≈37,68