# If the Ratio of the Areas of Two Squares is 9:1, the Ratio of Their Perimeters is:

**Answer: (2) 3 : 1**

**Explanation:-**

The ratio of the areas of two squares = 9:1

Formula-

Area of a square = side x side

The ratio of their side = sqrt.(9 : 1)

= 3 : 1

The ratio of their perimeters = 4 x 4 : 1 x 4

= 12 : 4

= 3 : 1

Hence, the answer is (2) 3 : 1.