we know that two similar triangles will have ratio corresponding side is same.
ratio triangle 1 is 75m^2.
and triangle 2 is 12m^2.
[tex] 75:12=\frac{75}{12} =\frac{25}{4} . [/tex]
so we have ratio of area [tex] 25:4 [/tex].
ratio of perimeter will be [tex] \frac{25}{4} =\frac{50}{8} =\frac{25}{12} [/tex].
from these perimeter ratio also [tex] \frac{25}{4} =25:4 [/tex].