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Home > CCG > Chapter 10 > Lesson 10.2.2 > Problem 10-87


Review what you know about the angles and arcs of circles below.

  1. A circle is divided into nine congruent sectors. What is the measure of each central angle? Homework Help ✎

    What is the total angle measure of a circle?

  2. In the diagram below, find and if .
    ccg 10-87 image

    How are inscribed angles related to intercepted arcs?

  3. In below, and inches. Find and the length of . Then find the area of the smaller sector
    . Circle

  • How does the angle measure relate to the arc measure?

    Intercepted arcs of equal measure to their corresponding central angles.

    Circumference of the Whole Circle

    Area of Circle

Area of Sector