Similar Polygons

An application for the study of similar polygons
Move the polygon ABCD or A'B'C'D' and place it over the other polygon. Move points A, B, C or D to change the format of the quadrilateral (or triangle) ABC (D). Move the points Z or I to change the format of equiangular quadrilateral EIHZ. Change the cursor λ to change the ratio of similarity of polygons.