[tex]\hbox{Aria suprafetei date este: } \\\\ \underline{A=L*l} \\\\ A=3,5m*2,5m \\\\ \boxed{A=8,75m^2} \\\\\\ 25cm \to 0,25m \\\\\\ \hbox{Aria unei placi de gresie este: } \\\\ \underline{A=l^2} \\\\ A=(0,25m)^2 \\\\ \boxed{A=0,0625m^2} \\\\\\ \hbox{Nr. de placi de gresie necesar este:} \\\\\\ 8,75m^2:0,0625m^2 \longrightarrow \boxed{\boxed{140 \ placi }}[/tex]
