Problem : What two geometric figures form the boundary of a sector? A circle segment?
Problem : If a central angle is 45 degrees, what is the measure of the major arc whose endpoints are at the intersection of the central angle and the circle?
Problem : When does a circle segment lie entirely within a sector?
Problem : If two different diameters are drawn into a circle, how many sectors are defined?
Problem : If the chord AB is perpendicular to the diameter PQ, and Q lies on the minor arc whose endpoints are A and B, what is the relationship between arc AQ and arc BQ?