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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.  Homework Help ✎

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

    What is the total angle measure of a circle?

  1. In the diagram below, find and if .

    How are inscribed angles related to intercepted arcs?

ccg 10-87 image

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

  • 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