text: [{"text_idx": "#000006", "text": "\u2018O\u2019 is the centre of the circle.\nAB = CD (equal chords from the figure)\n[ \u2235 equal chords make equal angles at the centre]"}, {"text_idx": "#000007", "text": "\u2018O\u2019 is the centre of the circle.\nPQ = RS [given, equal chords]\n\u2234\u2220POQ = \u2220ROS [ \u2235 equal chords make equal angles at the centre]"}]