Answer:
 here's your solution
 => both figure is similar and they are square
 => perimeter of square = 4*side
 => perimeter of. small square = 4*20 = 80in
 => perimeter of larger square = 4*24 = 96
 => now ratio of perimeter = 80/96 
 
 =>. 5/6
     => area of square = side*side
 => area of small square = 20*20 = 400in.sq
 => area of larger square= 24*24 = 576in.sq
 => now ratio of area. = 400/576
           => 25/36
    
hope it helps