Formule del cubo:
spigolo $=s$;
perimetro di base $2p= 4·s$ → formula inversa $s= \frac{2p}{4}$;
area di base $Ab= s^2$ → formula inversa $s= \sqrt{Ab}$;
area laterale $Al= 4·s^2$ → formula inversa $s= \sqrt{\frac{Al}{4}}$;
area totale $At= 6·s^2$ → formula inversa $s= \sqrt{\frac{At}{6}}$;
volume $V= s^3$ → formula inversa $s= \sqrt[3]{V}$;
diagonale $d= s·\sqrt3$ → formula inversa $s= \frac{d}{\sqrt3}$.