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Home > PC3 > Chapter 2 > Lesson 2.1.2 > Problem 2-24


A trundle wheel (a wheel attached to the end of stick) is used to measure distance. As you walk with the wheel on the ground, it makes a click after each revolution. 

  1. If the wheel has a radius of one foot, what is the exact distance for one revolution?

    What is the circumference of the wheel?

    (radius) = circumference

  2. What would the radius need to be so that each revolution is equal to exactly feet?

    Set the formula for the circumference equal to . Solve for the radius.