Respuesta :
Answer:
12PI miles
Step-by-step explanation: Circumference of a circle is PI*diameter. In this case it is obligatory just to multiply by 4, because he encircles is 4 times. So the answer is: P=4*3*PI=12PI. If you need detailed answer you can multiply by p=3.14;
The trail 4 times about 37.68 miles far did Michelle bike.
Given
A bicycle trail in the shape of a circle has a diameter of 3 miles Michelle biked around the trail 4 times.
Circumference of the circle;
The circumference of the circle is defined as the pie times diameter of the circle.
The circumference of the circle is;
[tex]\rm Circumference \ of \ circle= \pi \times Diameter[/tex]
Then,
The circumference of the bicycle is;
[tex]\rm Circumference \ of \ bicycle= 3.14 \times 3\\\\ Circumference \ of \ bicycle=9.42[/tex]
Therefore,
The trail 4 times about how far did Michelle bike;
= 4 ( 9.42) = 37.68 miles
Hence, the trail 4 times about 37.68 miles far did Michelle bike.
To know more about the Circumference of the circle click the link given below.
https://brainly.com/question/1072101