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Recent Additions (Page 19 of 80)




Geometry Problem 633
Triangle, Parallel Lines, Intersecting Lines. 

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

Parallelograms Index.
Theorems and Problerms


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

Brahmagupta Theorem and Problems  Index
Brahmagupta (598–668) was an Indian mathematician and astronomer who discovered a neat formula for the area of a cyclic quadrilateral. 

Dynamic Geometry
Software  Examples.
Dynamic Geometry or Interactive Geometry
Software are computer programs which allow
one to create and then manipulate geometric
constructions. 

Clawson Point Puzzle, Geometry for Kids.
22 Piece Polygons 

Geometry Problems 11  20.
Angle, Angle bisector, Triangle, Altitude, Median,
Congruence, Cevian,
Circle, Excircle, Excenter, Inradius, Exradius. 

Puzzle: Euclid's Elements Book I, 23 Definitions.
22 Piece Polygons. 

Clawson Point.
Orthic and Extangents Triangles, Concurrent lines. 

Archimedes Arbelos and Square.
Dynamic Geometry Software Tracenpoche.
StepbyStep construction, Manipulation, and animation.


Parallelograms Index.
Theorems and Problems. 

Word Cloud Software Generator.
Weighted list in visual design. 

Sangaku Japanese Geometry
Seventeenth and nineteenth centuries. 

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

Geometry Problem 628
Cyclic Quadrilateral, Congruence, Parallel Lines. 

Geometry in the Real World,
Toronto, Ontario  Slideshow. 

Geometry Problem 627
Cyclic Quadrilateral, Congruence, Concyclic Points. 

Geometry Problem 626
Triangle, Distance from the Incenter to an Excenter. 

Geometry Problem 625
Triangle, Parallel Lines, Congruence, Angle Bisector. 

Geometry Problem 624
Triangle, Incenter, Excenter, Incircle, Excircle, Similarity. 

Geometry Problem 623
Triangle, Incenter, Excenter, Incircle, Excircle,
Concyclic Points. 

Estadio Azteca, Mexico.
Map and News. It is the fifth largest stadium capacity in the world.
Capacity: 105,064. 

Geometry Problem
592.
Triangle, Incenter, Incircle, Tangency Point, Midpoints, Concurrent Lines, Congruence. 

Geometry in the Real World,
Los Angeles, California  Slideshow. 

Geometry in the Real World,
Chicago, Illinois  Slideshow. 

Geometry in the Real World,
Philadelphia  Slideshow. 

Cusco, Cuzco Main Square
Slideshow.


Huancayo Square, Slideshow


Geometry Problem
591.
Triangle, Incenter, Incircle, Inradius, Tangency Point, Midpoint, Altitude. 

Geometry Problems
581 
590.
Quadrilateral, Diagonals, Concurrency, Incenter, Metric Relations, Circumcenters, Parallelogram, Octagon, Areas, Tangency Point, Midpoint, Cyclic Quadrilateral, Volume of two Triangular Pyramids, Equal Trihedral Angle, Product of three Edges. 
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