What is the formula for the circumference of a circle. (select all that apply)
A C = 𝞹d
B C = 𝞹r
C C = 𝞹r squared
D C = 2𝞹r
What is the circumference If the diameter is 2.2 cm? Use pi=3.14. Round to the hundredths place.
A 6.90 cm
B 6.90 cm squared
C 6.91 cm squared
D 6.91 cm