Given data:
Side of first figure (a1) = 12 cm
Side of second figure (a2) = 30 cm
Now, The perimeter of first figure,
P1 = 4 a1
= 4 x 12
= 48
The perimeter of second figure,
P2 = 4 a2
= 4 x 30
= 120
Ratio of the perimeters,
[tex]\begin{gathered} \frac{P1}{P2}=\frac{48}{120} \\ \text{ = }\frac{2}{5} \end{gathered}[/tex]
Now, The area of first figure
A1 = a1 x a1
= 12 x 12
= 144
The area of second figure,
A2 = a2 x a2
= 30 x 30
= 900
The ratio of the areas,
[tex]\begin{gathered} \frac{A1}{A2}=\frac{144}{900} \\ \text{ = }\frac{6}{25} \end{gathered}[/tex]