blombard13 Works
The Circle, Square, and Rectangle: A Puzzle in Three Parts
Subdividing Triangles into Six Isosceles Triangles
Graphical Multiplication Table
Squares in a Rectangle
Theodorus Spiral
Earth and Moon Epitrochoid Trajectory
Proof of Pythagorean Theorem by Rotation
Rhombitrihexagonal Tiling
Rectangle of Constant Area
Inscribed Polygons in Equal Circles
Cardioid Envelope of Line Segments
Graphical Multiplication Table by Bill Lombard
Hexagonal Flower with Semicircles