Question

what is the circumference of a circle if the radius is 4

Answer 1

C=3.14(d)

Answer 2

so 4 is the radius which is half of the diameter so you would multiply 4 by 2 to get 8 which is the diameter

Answer 3

Circumference= d x pi
Radius=4 so your diameter is 8
So your circumference is 8pi or you can multiply by 3.14 for a more exact answer.

Answer 4

thanks. so whats the circumference is the diameter is 4 1/2 ?

Answer 5

so C=3.14(8)
C=25.12