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Home > GC > Chapter 10 > Lesson 10.1.2 > Problem 10-17


In at right, , is a diameter and . Find:  

A circle, with center point A, has 5 points clockwise about the circle, B, F, E, D, C, Line segments connect the following pair of points: from, C to F, through, A, from, A, to B, from, B, to C, from, B, to D, from, B, to E, from, D to F, from, F to e.

  1. How is related to ?

     and  are both inscribed angles with the same intercepted arc. So, .

  1. Use the same method you used for part (a).

    The measure of the intercepted arc is twice the measure of the inscribed angle. So, the measure is .