P. 14 Example 7.4T Solution: In the figure, O is the centre of the circle. AB  CD, AB  CD, OM  AB and ON  CD. If OP  6 cm, find ON. (Give the ans
{"Image DocumentName": "Example 7.4T 7.1 Chords of a Circle Solution: B. Chords a Circle", "Image ImageDescription": "In the figure, O is the centre of the circle. AB \uf03d CD, AB \uf05e CD, OM \uf05e AB and ON \uf05e CD. If OP \uf03d 6 cm, find ON. (Give the answer in surd form.) Solution: \u2235 AB \uf03d CD. \u2234 OM \uf03d ON (equal chords, equidistant from centre) \u2235 All of the interior angles of the quadrilateral OMPN are right angles and OM \uf03d ON. \u2234 OMPN is a square. In DONP, OP2 \uf03d ON2 \uf02b NP2 (Pyth. Theorem) \uf03d 2ON2. ON \uf03d cm. \uf03d cm.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}