### Home > GC > Chapter 11 > Lesson 11.2.1 > Problem 11-74

11-74.

The formula to find the circumference of a circle is 2π*r*.

≈ 9.5 times greater

≈ 91,253,182.4 miles

11-74.

The formula to find the circumference of a circle is 2π*r*.

≈ 9.5 times greater

≈ 91,253,182.4 miles