Respostas

2013-11-18T12:54:12-02:00
2013-11-18T12:58:43-02:00
Raio da esfera=5cm; A...área; V..volume
a) A=4x3,14xr2
A=4x3,14x 5x5
A=12,56 x 25
A=314 cm2

B) V=4x3,14x(5)3/3
V=12,56 x125/3
V=1570/3
V=523,33 cm3
2 3 2