if you don't have a Unit Circle yet, this is a good time to get one, you can find many online, check maybe in yahoo images, or google images.
Check the picture below.
notice the section encircled in purple.
Answer:
63,360 feet
Step-by-step explanation:
1 mile = 5280 ft
* 12 *12 (multiply 12 to both sides)
------------------
12 miles = 63,360 ft
