Respostas

2013-12-06T14:54:24-02:00
C = 2π * r
C = 2 * 3,14 * 2,14
C = 6,28 * 2,14
C = 13,4392 m


2013-12-06T15:55:10-02:00
C = 2π r
C = 2 x3,14 x2,14
C = 6,28 x2,14
C = 13,4392 m