Respuesta :

ghanami

Answer:

r=2

Step-by-step explanation:

The circumference of a circle is : P = 2πr... r : the radius and  P= 4π

so :  2πr = 4π

divide by :  2π  you have :  r = 2

Officialalehpeter

Answer: 2cm

Step-by-step explanation:

Circumference of a circle =2pir

Circumference given=4pi

R=?

Substitute the values

2pir=4pi

Pi cancel pi

2r=4

R=4/2

R=2

Radius of the circle is 2cm