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Home > PC > Chapter 1 > Lesson 1.2.2 > Problem 1-88


The circle below has a radius of one inch. Using exact values, what is the length of arc AB (shown in bold)? You will have π as part of your answer. Homework Help ✎

What part of the circumference is the arc AB?
How do you know?

What is the formula of the circumference of a circle?

Circumference = 2π(radius)