From the figure, identify:
(a) the centre of the circle
(b) three radii
(c) a diameter
(d) a chord
(e) two-points in the interior
(f) a point in the exterior
(g) a sector
(h) a segment
(a) O
(b) OA, OB and OC
(c) AC
(d) ED
(e) O and P
(f) Q
(g) AOB
(h) DE
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