Question

calcule a diagonal,a area total eo volume deum cubo de 2cm de aresta

Answer 1

diagonal

$d=a\sqrt{3}$

$\boxed{\boxed{d=2\sqrt{3}~cm}}$

área total

$A_t=6a^2$

$A_t=6*2^2$

$\boxed{\boxed{A_t=24~cm^2}}$

volume

$V=a^3$

$V=2^3$

$\boxed{\boxed{V=8~cm^3}}$