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Q.1 From the figure, identify:
(a) the centre of 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

Answer :

(a) The centre of circle is O
(b) Three radii are OA, OB, OC
(c) A diameter is AC
(d) A chord is ED
(e) Two points in the interior are O and P
(f) A point in the exterior is Q
(g) A sector is AOB i.e shaded region
(h) A segment is ED i.e shaded region