We have the angles 30∘,45∘,60∘,90∘ from the two set squares.
The above angles can be drawn using set squares as shown in the following calculations:
15∘=45∘−30∘
210∘=90∘+90∘+30∘
300∘=360∘−60∘
270∘=90∘+90∘+90∘
60∘ is drawn using a set square and the angle that is reflex is indicated as 300∘.