C
28
= π
The diameter is equal to twice the radius.
C = 2πr
C = 2(14)π
C = 28π
C
28
= π
Answer and explanation:
Given : The radius of a circle is 14.
To find : Which equation expresses the ratio of the circumference of the circle to the circle's diameter?
Solution :
The circumference of the circle is [tex]C=2\pi r[/tex]
Radius is r=14
The circumference of the circle is [tex]C=2\pi\times 14=28 \pi[/tex]
The circle's diameter is [tex]d=2r[/tex]
The ratio of the circumference of the circle to the circle's diameter is given by,
[tex]C:d=2\pi r : 2r[/tex]
[tex]C:d=\pi : 1[/tex]
Therefore, option B is correct.
