Answer:
3.14
Step-by-step explanation:
Circumference of a circle is given by
[tex]C=\pi d[/tex] and making [tex]\pi[/tex] the subject then
[tex]\pi=\frac {C}{d}[/tex]
Here d is the diameter and C is the circumference.
Given that d=10cm and C=31.4 then
[tex]\pi=\frac {31.4}{10}=3.14[/tex]
