Question

A child sitting on the edge of a merry go round travels 22m in one full turn, What is the diameter of the merry-go-round?​

Answer 1

Diamter=7 meter

Explanation:

One full turn means we have 360° of theta which equals 2pi in radinas

And arc length is 22 so using the equation theta= L/r = 2pi=22/r so r= 3.50 and diameter= 2r =7 m