Respostas

2014-03-13T15:30:32-03:00
C = 50,24
r = ?
π = 3,14
d = 2.r

π =  \frac{c}{d} = 3,14 = 50,24 / d
d =  \frac{50,24}{3,14}
d = 16
d = 2.r
16 = 2.r
r =  \frac{16}{2}
r = 8