Answer:
The circumference
of a circle is the distance round the circle. It is about 3 times
the length of the diameter
C = 3 x d
C = p x d where
p (π) is 3.141 59…
For E.g the circumference
of a bicycle wheel of diameter 66 cm is about 3 x 66 cm, which is
198 cm. More accurately, it is approximately 3.142 x 66 cm which
is 207 cm to the nearest cm. The word circumference
is also used for the boundary of a circle as well for the length
of the boundary.
