Click the figure below to view the Clawson Point.
Zoom at: Clawson Point
Level: High School, SAT Prep, College geometry
Thursday, June 30, 2011
Problem 630: Clawson Point: Orthic Triangle, Extangents Triangle, Homothecy
Puzzle based on the Clawson Point, Geometry for Kids, Triangle Centers
Interactive Puzzle
Click the figure to solve the interactive puzzle about the Clawson Point: Circumcenters, Concurrent lines
Zoom at Puzzle: Clawson Point
Wednesday, June 29, 2011
iPad Apps: iCrosss, 3D Polyhedron - Video
iPad 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.
Click the figure below to see the video demo.
iPad, iPhone Apps: Math Shapes, Geometry for Kids - Video
Friday, June 24, 2011
Sangaku Japanese Geometry Problems
Click the figure below to see the visual index of Sangaku problems.
Level: High School, SAT Prep, College geometry
Thursday, June 23, 2011
Problem 629: Triangle, Perpendicular to Sides, Intersecting Lines, Altitude
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 629.
Problem 628: Cyclic Quadrilateral, Congruence, Parallel Lines
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 628.
Wednesday, June 22, 2011
Problem 627: Cyclic Quadrilateral, Congruence, Concyclic Points
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 627.
Monday, June 20, 2011
Problem 626: Triangle, Distance from the Incenter to an Excenter
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 626.
Saturday, June 18, 2011
Problem 625: Triangle, Parallel Lines, Congruence, Angle Bisector
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 625.
Thursday, June 16, 2011
Problem 624: Triangle, Incenter, Excenter, Incircle, Excircle, Similarity
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 624.
Problem 623: Triangle, Incenter, Excenter, Incircle, Excircle, Concyclic Points
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 623.
Sunday, June 12, 2011
Problem 622: Intersecting Circles, Concyclic Points, Centers, Radii
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 622.
Saturday, June 11, 2011
Online Geometry Problem 621: Two Parallelograms, Diagonals, Centers, Parallel Lines
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 621.
Area de las Figuras Planas: Teoremas y Problemas, English ESL
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice de area de las figuras planas.
Circunferencia Exinscrita: Teoremas y Problemas, English ESL
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice de la circunferencia exinscrita del triangulo.
Incentro del Triangulo, Teoremas y Problemas, English ESL
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice del incentro del triangulo.
Circunferencia, Circulo, Teoremas y Problemas, English ESL
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice de la circunferencia y circulo.
Cuadrado: Teoremas y Problemas, English ESL
Triangulo Escaleno: Teoremas y Problemas, English ESL
Triangulo Equilatero: Teoremas y Problemas, ESL
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice del triangulo equilatero.
Triangulo Isosceles: Teoremas y Problemas
Triangulo Rectangulo: Teoremas y Problemas
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice del triangulo rectangulo.
Mediana del Triangulo: Teoremas y Problemas
Altura del Triangulo, Teoremas y Problemas
Triangulos: Teoremas y Problemas
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice de triangulos.
Problemas de Geometría
Spanish-language version
Version en español.
Nivel: Educacion Secundaria, Academia, Preparatoria, Bachillerato, College.
Hacer click en la figura para ver el indice de problemas en espanol.
Geometría: Teoremas y Problemas
Online Geometry Problem 620: Three Rectangles, Diagonals, Centers, Angles
Thursday, June 9, 2011
Problem 619: Triangle Area, 30 Degrees, Incircle, Incenter, Tangent
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 619.
Problem 618: Triangle Area, 60 Degrees, Incircle, Incenter, Tangent
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 618.
Problem 617: Right Triangle Area, Incircle, Incenter, Tangent, 90 Degrees
Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the complete problem 617.
Problem 616: Parallelogram, Diagonals, Intersecting Lines, Parallel Lines
Geometry Problem
Level: Mathematics Education, High School, College.
Click the figure below to see the complete problem 616.
Tuesday, June 7, 2011
Problem 615: Right Triangle with a Square, Diagonals, Center, Area of Quadrilateral
Geometry Problem
Level: Mathematics Education, High School, College.
Click the figure below to see the complete problem 615.
Monday, June 6, 2011
Problem 614: Parallelogram, Diagonals, Intersecting Lines, Parallel Lines
Geometry Problem
Level: Mathematics Education, High School, College.
Click the figure below to see the complete problem 614.

