Răspuns :
Lc=2πR
a) L=2*4π=8π
b)0,(4)=4/9
L=2 * 4/9π= 8/9 π= 0,(8)π
c)3,6667
L=2*3,6667 π=7, 33334π
a) L=2*4π=8π
b)0,(4)=4/9
L=2 * 4/9π= 8/9 π= 0,(8)π
c)3,6667
L=2*3,6667 π=7, 33334π
a) L=2*4TT= 8TT
b)0,(4) transformam in fractie si iese 4/9 =>2*4/9TT=0,(8)TT
c) 2*3,6667TT=7,33334TT
b)0,(4) transformam in fractie si iese 4/9 =>2*4/9TT=0,(8)TT
c) 2*3,6667TT=7,33334TT