Raportul de asemanare dintre ΔABC si ΔDEF este:
[tex]\displaystyle \bf\\
k = \frac{AB}{DE} = \frac{3}{5}
[/tex]
Raportul dintre Aria (ΔABC) si Aria (ΔDEF) este:
[tex]\displaystyle \bf \\
k^2 = \left(\frac{AB}{DE}\right)^2 = \left(\frac{3}{5}\right)^2=\frac{3^2}{5^2} =\boxed{\bf\frac{9}{25}}[/tex]