[tex]\hbox{Fie l latura patratului si A aria patratului} \\\\ A_{1}=l_{1}^2...............................25g \\\\ A_2=l_{2}^2= (\frac{l_{1}}{5})^2..................x \\\\\\ l_{1}^2 * x= 25* (\frac{l_{1}}{5})^2 \\\\ l_{1}^2*x = \not 25 * \frac{l_{1}^2}{\not25} \\\\ l_{1}^2*x= l_{1}^2 \\\\\\ x= \frac{\not l_{1}^2}{\not l_{1}^2}=1 \\\\\\ \boxed{ x \longrightarrow 1 g \ \ \ \ \ \hbox{Se foloseste 1 gram de vospea pentru patratul mai mic}}[/tex]
