Answer:
Ok,
Did you know that there was a chicken that went 4 years without a head?
Did you know that it is illegal to chew gum in Signapore?
Step-by-step explanation:
Hope this brightens your day!
The legnth is irrelivant
we know that
Circumference=2 times pi time radius
c=40
40=2 times pi times radius
divide both sides by 2
20=pi times radius
divide both sides b pi
20/pi=radius
the radius is 20/pi cm or aproximately 6.366199048 cm