The Circumference of a Circle
Formula of the circumference of a circle using the diameter:
[tex]c = \pi {d}[/tex]
Formula of the circumference of a circle using the radius:
[tex]c = 2\pi {r}[/tex]
Answers:
1.)
[tex]c = (3.14)(4)[/tex]
[tex]c = 12.56[/tex]
[tex]\bold{\boxed{12.56 cm}}[/tex]
2.)
[tex]c = (3.14)(23)[/tex]
[tex]c = 72.22[/tex]
[tex]\bold{\boxed{72.22 m}}[/tex]
3.)
[tex]c = (2)(3.14)(9)[/tex]
[tex]c = 56.52[/tex]
[tex]\bold{\boxed{56.52 m}}[/tex]
