Question

How many radius make a complete circle​

Answer 1

Explanation:

It takes 2 π 2\pi 2π radians (a little more than 6 radians) to make a complete turn about the center of a circle. This makes sense, because the full circumference of a circle is 2 π r 2\pi r 2πr , or 2 π 2\pi 2π radius lengths.