Question

o volume de um cubo é 27 dm³ determine aresta, area total e diagonal

Answer 1

volume = a³
27 = a³
a = ∛27
a = 3  <<aresta

area total = 6a² 
area total = 6(3)² = 6.9
area total = 45cm²

diagonal = a√3 
diagonal = 7√3