Question

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

Answer 1

Answer: C

67.9 m

Explanation:

Answer 2

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.