Răspunsuri

2014-05-02T15:56:53+03:00
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
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2014-05-02T16:01:29+03:00
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
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