[tex]l_1=lungimea~laturii~primului~patrat \\ l_2=lungimea~laturii~celui~de-al~doilea~patrat \\ A_1=aria~primului~patrat \\ A_2=aria~celui~de-al~doilea~patrat \\ \\ \frac{l_1}{l_2}= \frac{5}{6}. \\ \\ \frac{A_1}{A_2}= \frac{l_1^2}{l_2^2}= \Big(\frac{l_1}{L_2} \Big)^2= \Big(\frac{5}{6} \Big) ^2= \frac{25}{36}. [/tex]
