Excellent work Junichi!
For those that download New_Geometry_Tools.vsd, be sure to notice that it is a beautiful ten-page document, explaining the use of all the shapes. Be sure to look at each page!
These shapes allow you to solve a lot of geometrical problems involving intersections, tangent lines to circles and ellipses, parallel lines, radii and diameters and more!
Also note, Visio comes with a set of shapes similar to these, which you'll find under Visio Extras > Drawing Tools Shapes. Junichi's set is more extensive, solves harder geometrical problems, and his shapes have a lot more options in the right-click menus!
