Respostas

2014-03-26T18:54:10-03:00
C = d . π
C = 30 . 3,14
C = 94,2 cm
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2014-03-26T18:55:13-03:00
Comprimento = 2piR
D = 2R
R = D/2
R = 30/2 = 15
2 . 3,14  . 15 = 94,2 cm
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