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Home > GC > Chapter 9 > Lesson 9.1.4 > Problem 9-41


Two circles tangent to each other.While Katarina was practicing her figure skating, she wondered how far she had traveled. She was skating a “figure ,” which means she starts between two circles and then travels on the boundary of each circle, completing the shape of a sideways . If both circles have a radius of feet, how far does she travel when skating one “figure ”?  

What is the circumference of one circle? How can this help you find the total distance traveled?