Three points p,q and r are on horizontal plane, point Q is on a bearing of 120° as a distance of 80 m from p. point r is on a bearing of 45° at a distance of 150 m from point q a calculate correct to 2 significance figures I the distance between point p and r i i bearing of people from point r i i how far west of r is Q IV the perpendicular distance from Q to line PR ​