The ratio of the diameters of two circles is 3:5. The circumference of the larger circle is approximately 113.1 m. What is the approximate circumference of the smaller circle?

7.5 m

22.6 m

67.9 m

188.5 m

Given:

diameter of two circles 3:5

small circle : 3

large circle : 5

circumference of two circles x : 113.1

small circle : ?

large circle : 113.1 m

3:5 = x : 113.1

3*113.1 = 5*x

339.3 = 5x

339.3 / 5 = x

67.86 = x

The approximate circumference of the smaller circle is 67.9 m.