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Home > CCG > Chapter 10 > Lesson 10.2.2 > Problem 10-83

10-83.

Remember that the radian measure of a central angle of a circle is the ratio of the arc length to the radius (see problem 10-55). is blue. Homework Help ✎

  1. What is the radian measure for a ‑degree central angle on a circle with radius cm? What is the radian measure for a -degree central angle on a circle with radius cm? Answer in terms of .

    Both answers in part a should be the same.

  2. The central angle of a circle has a radian measure of . What is the measure of the central angle of the sector in degrees?