Circumference of a circle is pi times diameter therefore
C = pi(3.14159265359) * 6
= 18.84955592154
say 18.85 inches
(3.14159265359 is the approximate value of pi)
Chat with our AI personalities
Circumference = (pi) x (diameter) = 14 pi = 43.9823 inches (rounded)
The circumferance is found by using the formula 2(r)(pi). r stands for the radius. The diameter, which is already given in the problem, is two time radius. Therefore the only thing you really have to do is multiple the diameter= 3 inches by pi. Circumferance is 9.425 inches.
divide the circumference by 3.14 to get the diameter - then divide that by 1/2 to get the radius Radius = Circumference / 2 x pi from C = Diameter x pi
If the diameter is 6 inches, then the radius is 3 inches.
circumference = pi*diameter so diameter = circumference/pi = 19.1 metres.