A yacht sails from P on a bearing of 070° for 12 km to reach Q. It then sails on a bearing of 160° for 9 km to reach R.Diagram NOT accurately drawn
(a) Show that angle PQR is a right angle.
(b) Work out the distance PR.
(c) Work out the bearing of R from P. Give your answer correct to the nearest degree. ●●●●●Level 57 marksStart→