Geometric Constructions   
by Dekov Software   

The program includes 142 animations. Each animation provides detailed, step-by-step description of a straightedge-and-compass geometric construction studied in high school geometry courses. All constructions are grouped in eight sections: Basic Constructions (18 constructions), Segments (19 constructions), Angles (9 constructions), Circles and Arcs (17 constructions), Triangles (32 constructions), Polygons (17 constructions), Transformations (8 constructions), Themes (22 constructions). Section Themes contains subsections: Special Segments, Radical Center, Apollonius circles, Malfatti circles, Arbelos, Collapsing Compass, etc. The program is designed for high school students and teachers.