The ratio between the area of two similar triangles can be described using the following expression:
[tex]\frac{A_1}{A_2}=(\frac{side_1}{side_2})^2_{}[/tex]Applying the data from the problem we have:
[tex]\begin{gathered} \frac{A_1}{A_2}=(\frac{2}{5})^2 \\ \frac{A_1}{A_2}=\frac{4}{25} \end{gathered}[/tex]The answer is A.