Answer:
37.68 miles
Step-by-step explanation:
To solve this problem, we first need to find the circumference of the bicycle trail. The formula for the circumference of a circle is as follows:
[tex]C=\pi d[/tex]
d = diameter
We know that the diameter of the bicycle trail is 3 miles. Lets plug in the values:
[tex]C=\pi (3)[/tex]
[tex]C=9.42[/tex]
The last step is to multiply 9.42 by 4 since Michelle biked around the trail 4 times.
[tex]x=9.42(4)[/tex]
[tex]x=37.68[/tex]
Michelle biked for 37.68 miles.
