The ratio of the sides of the squares in the given figure is

13 : 4 1 : 4 4 : 3 10 : 4

1 : 4

Area of Ist square = 1.69 cm2 Side of Ist square = $\sqrt{area}=\sqrt{1.69}$ = 1.3 cm Side of IInd square = 5.2 cm Ratio = 1.3 : 5.2 =1: 4