Respostas

2014-06-03T11:26:58-03:00
Olá, Wellingtonsant!

2 . π . r = C
2 . 3,14 . r = 94,2
6,28 . r = 94,2
r = 94,2 / 6,28
r = 15cm
2014-06-03T11:29:47-03:00
2.pi.r=C 
2. 3,14. r= 94,2 
6,28.r=94,2 
r=94,2/6,28 
r=15 cm >>>>>>>>>>>>.