1 ParallelLines Press Ctrl-A ©2009 G Dear – Not to be sold/Free to use Stage 4 Years 7 & 8

2 Place the Set Square anywhere on the line. Parallel Line Construction 1 AB C Set Square Construct a line Parallel to AB through C using a Set Square. ABC CD || AB AB Draw a line perpendicular to AB. redC Move the Set Square so that it is along the red line & passes through C C Now draw a line through C Red Remove Set Square and Red Line D Press || is the symbol || is the symbol for parrallel

3 Parallel Line Construction 2 AB C Pair of Compasses Construct a line Parallel to AB through C using a Pair of Compasses. A B C D CAB Draw a line from C to the line AB. AC AB A Draw an arc from the line AC to the line AB centred at A. C Redraw the arc at C. E DE Set the compasses to the length DE. F F Use this length to draw an arc at F. G CG Draw the parallel line through C and G.Add arrows to show they are parallel. CG || AB