Answer:
The radius is 63.69.
Step-by-step explanation:
Given:
The circumference of a circular track is 400.
Now, to find the radius:
So, to get the radius(r) we put the formula of circumference:
[tex]Circumference=2\pi r[/tex]
⇒ [tex]400=2\times 3.14\times r[/tex]
⇒ [tex]400=6.28\times r[/tex]
Dividing both sides by 6.28 we get:
⇒ [tex]63.69=r[/tex]
⇒ [tex]r=63.69[/tex]
Therefore, the radius is 63.69.