Respuesta :

Answer:

4 : 7

Step-by-step explanation:

Given 2 similar figures the if the ratio of perimeters = a : b

The the ratio of areas = a² : b²

Here

ratio of areas = 16 : 49 , then

ratio of perimeters = [tex]\sqrt{16}[/tex] : [tex]\sqrt{49}[/tex] = 4 : 7