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16. Find the measure of arc EG. E 150 A 12 H 110 17. In the diagram, AC = FD = 30, PG = x + 5, and A B PJ = 3x - 1. Find the radius of OP. (Section 10.3) G X + 5 C P 3x - 1 H F D E 18. A circular clock can be divided into 12 congruent sections. a. Find the measure of each arc in this circle. b. Find the measure of the minor arc formed by the hour and minute hands when the time is 7:00. c. Find a time, other than 7:00, at which the hour and minute hands form an arc that is congruent to the arc in part (b)