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Home > CCG > Chapter 9 > Lesson 9.1.4 > Problem 9-47


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?

Two circles tangent to each other.