Respostas

2014-06-26T21:21:59-03:00
D = 3√3
D² = d² + l²
d² = l² + l²
d² = 2l²

D² = 2l² + l²
D² = 3l²
(3√3)² = 3l²
27 = 3l²
l = 3cm

V = l³
V = 27cm³

S = 6*A
S = 6*l²
S = 6*3²
S = 6*9
S = 54cm²