Respuesta :

xSamx
The formula for finding the circumference is [tex]C= \pi d = 2 \pi r[/tex]
[tex]C=2 \pi (4)[/tex]
[tex]C=8 \pi [/tex]
[tex]C=25.13[/tex]
daltonhardy
The formula for finding the circumference is ~3/1  3.1/1 3.14159.........