


Geometry Problem 633
Triangle, Parallel Lines, Intersecting Lines. 

Geometry Problem 632.
Triangle, Interior and Exterior Angle Bisectors, Midpoints, Collinear Points. 

Geometry Problem 631.
Triangle, Exterior Angle Bisectors, Collinear Points. 

Clawson Point.
Orthic and Extangents Triangles, Concurrent lines. 

Geometry in the Real World,
Washington D.C.  Slideshow. 

Clawson Point Puzzle, Geometry for Kids.
22 Piece Polygons 

Open Geometry Problems  Index 

Geometry in the Real World, Dallas, Texas  Slideshow. 

Geometry Problem 629
Triangle, Perpendicular to Sides, Intersecting Lines, Altitude. 

Geometry in the Real World, Boston, Massachusetts  Slideshow. 

iPad, iPhone Apps: Bubble Harp, Geometry for Kids  Video.
Bubble Harp was built for the iPhone and iPad with the help of
openFrameworks
and a Triangle Mesh Generator. 

iPad, iPhone Apps: Math Shapes, Geometry for Kids  Video.
Covers PreK, Kindergarten, and Grade 1 geometry. 

Geometry in the Real World,
Toronto, Ontario  Slideshow. 

Geometry Problem 628
Cyclic Quadrilateral, Congruence, Parallel Lines. 

Sangaku Japanese Geometry
Seventeenth and nineteenth centuries. 
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