(Segment basics)
Consider a circle of radius r and a chord AB that divides the circle into two regions called segments.
a. (i) Define a segment of a circle.
b. (ii) Distinguish between a minor segment and a major segment.
c. (iii) Describe, in words, a systematic procedure to obtain an expression for the area of a segment in terms of the radius r and the angle θ (in degrees) subtended by the chord at the centre of the circle.