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Home > CCG > Chapter 12 > Lesson 12.1.4 > Problem 12-52


Use the relationships in each diagram below to solve for the given variables. Homework Help ✎

  1. diagram a

    The secant-tangent angle is half the difference between the major and minor arcs.

    The total measure of all the arcs in a circle is 360°.

  1. The area of is sq. units.

    The area of a circle is .

     is the radius of .

  1. The diameter of is units. w is the length of .

  1. diagram d

    Refer to the Math Notes box in Lesson 8.1.4 for help calculating the sum of all of the angles in a polygon.