How To Do Loci And Construction. Make a scale drawing on a scale of 1:1000, and use ruler and compasses to find the location of the treasure. Bearings are three figure angles measured clockwise from north.
The straight line of the locus is parallel to the edges of the rectangle. For example, the locus of points that are 1cm from the origin is a circle of radius 1cm centred on the origin, since all points on this circle are 1cm from the origin. Angle bisector of 30° • start by drawing an angle of 60° • put the sharp end of your compasses at point b and make one arc on the line bc (point s) and another arc on
