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The figure at right shows two concentric circles.

  1. What is the relationship between and ? How can be mapped to using a transformation?

    They are both intercepted by .
    Dilate  from  to get .

  2. Which has greater measure, or ? Which has greater length? Explain.

    Both arcs have the same central angle but are part of different circles.

  3. If and , what is the length of ? Show all work.

A circle, with center, P, has points C, and D, A smaller circle, inside, also with center, P, has points, A, & B, placed so that line segment, P, C, passes through, A, and line segment, P, D, passes through, B.