[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
The given two polygons are similar to one another ~
Sides of the given polygons are in ratio of :
[tex]\qquad \sf \dashrightarrow \: 28 : 4[/tex]
to put in simple Ratio ~
[tex]\qquad \sf \dashrightarrow \: 7: 1[/tex]
So, the sides of the larger polygon are :
Now, to find the Perimeter of larger polygon ~ add the side length of all sides :
[tex]\qquad \sf \dashrightarrow \:p = 28 + 42 + 21 + 28 + 49 + 21 + 21 + 28[/tex]
[tex]\qquad \sf \dashrightarrow \:238 \: \: units[/tex]
