2 Obtuse triangle ARST is shown below along with line m Point S lies on m Lines are drawn in from the vertices of RST that are perpendicular to line m a Using a compass only draw the image of ARST i e AR S T after a reflection in line m Leave all relevant construction marks b Why are points S and S coincident i e lie in the same spot R T c Draw segment TT Why is ASTT isosceles If you don t remember what isosceles means look it up S m