Abstract
The traditional Euclidean geometric constructions are carried out with compass and a ruler. The topic of the thesis is focused on the constructions with compass alone. These constructions contain curves construction, Fermat point, Tooth-wheel coupling between epicycloids and hypocycloid, ellipse sliding in deltoid and the deltoid circumscribing an ellipse. These constructions are obtained through experiments under the dynamic geometry environment provided by the software Cabri Geometry.