Question

No cubo da figura, as arestas medem 6 cm. Quanto mede a diagonal AB ? ​

Answer 1

$\Large\boxed{\begin{array}{l}\underline{\rm Diagonal~do~cubo~de~aresta~\ell}\\\huge\boxed{\boxed{\boxed{\boxed{\sf D=\ell\sqrt{3}}}}}\end{array}}$

$\large\boxed{\begin{array}{l}\tt dados\begin{cases}\sf \ell=6~cm\\\sf D=?\end{cases}\\\underline{\rm soluc_{\!\!,}\tilde ao\!:}\\\sf D=\ell\sqrt{3}\\\sf D=6\sqrt{3}~cm\end{array}}$