Protractors usually stop at 180°, which means reflex angles cannot be drawn by just following this method. To draw a reflex angle, for example PQR = 300°, calculate what the acute angle PQR ...

It might be useful to look at M1 Properties of Angles and M1 Properties of 2D shapes. Constructions are accurate drawings of shapes using a ruler and protractor. From a sketch or a description ...