Answer:
[tex]C = 2\pi r[/tex]
[tex]C = \pi d[/tex]
Step-by-step explanation:
Given
A circular ring
Required
The length
Let
[tex]r \to[/tex] the radius of the ring
The length is calculated by calculating the circumference of the ring.
This is calculated using:
[tex]C = 2\pi r[/tex]
or
[tex]C = \pi d[/tex]
Where
[tex]d \to[/tex] diameter
and [tex]d = 2r[/tex]