Diameter = long line (2 x radius)

Radius = short line (1/2 diameter)

Circumference = measure of circle

more than 3 diameter lines or more than 6 radius​ lines.

This special measure has a name.

​

It is not Astrid, Carla, Maria, John, Jairo, Juan, Melvin, Briseda, Abigail, Ahuner, Yackelin, Jeremey, Emiliano, Katherine, or Abner. Yup its Jeraldy.

The diameter string will wrap around almost 3 times.

Pi is how many strings to wrap around a circle. There is not a perfect number, but instead a number with no ending.

J.K. The name of this measure is pi.