26,28,&30.

Mathematics
Tutor: None Selected Time limit: 1 Day

May 21st, 2015

26. 55 degrees, as 360-125-125 = 110. Divide in half to get on part of the arc. 

28. Arc CB is congruent to Arc BD; In the same or congruent circles, congruent chords have congruent arcs. 

Arc AD is congruent to Arc AC; In the same or congruent circles, congruent arcs have congruent chords. 

AB bisects the chord and all respective arcs. A diameter that is perpendicular to a chord bisects the chord and its two arcs. 

30. CP and CQ bisect their respective arcs and chords they are perpendicular to; A line that passes through the center of a circle and is perpendicular to a chord in that circle also bisects the chord and its arc.

May 21st, 2015

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