Respostas

2014-01-29T17:59:23-02:00
V = 4/3πr³
V = 4/3 * 3,14 * 3³
V = 4/3 * 3,14 * 27
V = 4/3 * 84,78
V = 339,12/3
V = 113,04 cm³
2014-01-29T18:02:55-02:00
VOLUME =  V =  \frac{4}{3}   \pi  r^{3} ,
substitui: V =  \frac{4}{3}  \pi  3^{3}
V =  \frac{4}{3}  \pi  9
multiplica o 9 pelo 4:
V = \frac{36}{3} \pi
V = 12 \pi