The radius of a circle is 3 miles. what is the circle's circumference? use 3.14

6 miles

Step-by-step explanation:

circumference=2 (radius)

c=2 (3)

c=6

The formula for the circumference of a circle is:

C = 2πr [C = circumference r = radius π (pi) = 3.14 ... ]

You know:

r = 3 miles and π = 3.14

So substitute/plug it into the equation

C = 2πr Plug in 3 into "r" since r = 3, and plug in 3.14 into "π" since π = 3.14

C = 2 (3.14) (3)

C = 18.84 miles