Using ruler and a pair of compasses only, construct:
(i) a quadrilateral PQRS such that /PO} = 7 cm,
LOPS = 60°, /PS/ = 6.5 cm, LPQR = 135° and /QS/ = /QR/;
(H) locus 11 of points equidistant from P and Q;
(iii) locus 12 of points equidistant from P and S.
, ~.