Question

Which formula is used to find the circumference of a circle when the radius is given?(1 point)
Responses

C=π2r
𝐶
=
𝜋
2
𝑟

upper C equals 2 r

C=πr2
𝐶
=
𝜋
𝑟
2

upper C equals r squared

C=π2d
𝐶
=
𝜋
2
𝑑

upper C equals 2 d

C=πr

Answer 1

C = 2πr

(So choose the option that represents 2πr.)