Proposed Problem
Click the figure below to see the complete problem 295 about Archimedean Twin Circles, Arbelos, Semicircles, Harmonic Mean, Radii, Perpendicular, Diameter.
See also:
Complete Problem 295
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Sunday, May 31, 2009
Problem 295: Archimedean Twin Circles, Arbelos, Semicircles, Harmonic Mean, Radii, Perpendicular
Saturday, May 30, 2009
Soddy Circles and Descartes Theorem
Three Tangent Circles. Inscribed and Circumscribed Circles, Radii.
Click the figure below to see the complete illustration.
See also:
Complete Soddy Circles and Descartes Theorem
Collection of Geometry Problems
Circle, Theorems and Problems
Level: High School, SAT Prep, College geometry
Thursday, May 28, 2009
Problem 294: Right triangle, Circumcenter, Excenter, Hypotenuse, Perpendicular
Proposed Problem
Click the figure below to see the complete problem 294.
See also:
Complete Problem 294
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Wednesday, May 27, 2009
Parallel Lines Index
Theorems and Problems
Click the figure below to see Parallel lines: Theorems and Problems Index.
See also:
Parallel lines, Theorems and Problems Index
Geometry Index
Level: High School, SAT Prep, College geometry
Tuesday, May 26, 2009
Sleeping Peasants by Pablo Picasso
Golden Rectangles
Pablo Picasso (1881 - 1973) was a Spanish painter, draughtsman, and sculptor. As one of the most recognized figures in 20th-century art, he is best known for co-founding the Cubist movement and for the wide variety of styles embodied in his work.
Click the figure below to see Sleeping Peasants, La Siesta, by Pablo Picasso.
See also:
Sleeping Peasants, La Siesta, by Pablo Picasso.
Pablo Picasso Index
Monday, May 25, 2009
NCTM Principles and Standards for School of Mathematics
Interactive Mind Map
Click the figure below to see the mind map based on the NCTM Principles and Standards for School of Mathematics.
Read more:
NCTM Principles and Standards for School of Mathematics Mind Map
GMAT Index
Mind Map Index
Problem 293: Inscribed Quadrilateral, Perpendicular, Rectangle, Isosceles Right triangle, Area, Similarity.
Proposed Problem
Click the figure below to see the complete problem 293.
See also:
Complete Problem 293
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Saturday, May 23, 2009
Problem 292: Triangle, Parallel, Congruence, Similarity
Proposed Problem
Click the figure below to see the complete problem 292.
See also:
Complete Problem 292
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Centroid or Barycenter of a triangle, Theorems and Problems
Theorems and Problems Index
Click the figure below to see the complete Centroid or Barycenter Index.
See also:
Centroid or Barycenter Index
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Problem 291: Triangle, Circle, Radius, Perpendicular
Proposed Problem
Click the figure below to see the complete problem 291.
See also:
Complete Problem 291
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Friday, May 22, 2009
TracenPoche Interactive Geometry Software Applications
Index
Click the figure below to see TracenPoche Interactive Geometry Software Applications.
See also:
TracenPoche Interactive Geometry Software Applications
Geometry Index
Level: High School, SAT Prep, College geometry
Dynamic Geometry Software
Index
Click the figure below to see Dynamic Geometry Software Applications.
See also:
Dynamic Geometry Software
Geometry Index
Level: High School, SAT Prep, College geometry
Wednesday, May 20, 2009
Euclid's Elements Book X, Lemma for Proposition 33
Right triangle, Altitude, and Rectangles
Click the figure below to see Euclid's Elements Book X, Lemma for Proposition 33.
See also:
Euclid's Elements Book X, Lemma for Proposition 33.
Euclid's Elements Index.
Geometry Index
Level: High School, SAT Prep, College geometry
Euclid's Elements
Index
Click the figure below to see Euclid's Elements Index.
See also:
Euclid's Elements Index.
Geometry Index
Level: High School, SAT Prep, College geometry
Rectangle: Theorems and Problems
Index
Click the figure below to see Rectangle: Theorems and Problems Index.
See also:
Rectangle, Theorems and Problems Index.
Geometry Index
Level: High School, SAT Prep, College geometry
Monday, May 18, 2009
Problem 290: Internally Tangent circles, Radius, Perpendicular, Tangent
Proposed Problem
Click the figure below to see the complete problem 290.
See also:
Complete Problem 290
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Saturday, May 16, 2009
Varignon and Wittenbauer parallelograms, Areas
Quadrilateral midpoints and trisection points of sides
Click the figure below to see Varignon and Wittenbauer parallelograms.
See also:
Varignon and Wittenbauer parallelograms
Geometry Index
Level: High School, SAT Prep, College geometry
Area of a triangle, Theorems and Problems
Index
Click the figure below to see the index of area of a triangle.
See also:
Area of a triangle, Index
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Wednesday, May 13, 2009
GMAT Guide Index
The Graduate Management Admission Test, Guide Index
Click the figure below to see the index.
Read more:
GMAT Guide Index
Mind Map Index
Saturday, May 9, 2009
Problem 289: Tangent circles, Radius, Perpendicular, Tangent
Proposed Problem
Click the figure below to see the complete problem.
See also:
Problem 289: Tangent circles, Radius, Perpendicular, Tangent
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Problem 288: Tangent circles, Harmonic Mean, Radius, Diameter
Proposed Problem
See also:
Complete Problem 288: Tangent circles, Harmonic Mean, Radius, Diameter
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Friday, May 8, 2009
Google Products Index, Interactive Mind Map
Click the figure below to see the interactive mind map.
Read more:
Google Products Index, Interactive Mind Map
Software Index
Mind Map Index
Thursday, May 7, 2009
Polygon Classification, Interactive Mind Map
Interactive Mind Map
Click the figure below to see the interactive mind map.
Read more:
Polygon Classification, Interactive Mind Map
Software Index
Mind Map Index
Wednesday, May 6, 2009
Google for Educators Mind Map
Interactive Mind Map
Google for Educator offer free online Google products like Google Search, Docs, Blogger, Calendar, Group, Earth, SketchUp, Maps, and more. For example Google Docs allows teachers and students to create documents, spreadsheets and presentations for free, so having to install Microsoft Word, Excel or Powerpoint on every classroom computer is no longer an issue.
Click the figure below to see the interactive mind map.
Read more:
Google for Educators Mind Map
Software Index
Mind Map Index
Sunday, May 3, 2009
Google SketchUp Mind Map
Interactive Mind Map
Google SketchUp is a 3D modeling program designed for architects, civil engineers, filmmakers, game developers, and related professions. It also includes features to facilitate the placement of models in Google Earth. It was designed to be easier to use than other 3D CAD programs.
Click the figure below to see the interactive mind map.
Read more:
Google SketchUp Mind Map
Software Index
Mind Map Index
Sacred Geometry
Interactive Mind Map
Sacred geometry is geometry used in the design of sacred architecture and sacred art. The basic belief is that geometry and mathematical ratios, harmonics and proportion are also found in music, light, cosmology.
Click the figure below to see the interactive mind map.
Read more:
Sacred Geometry Interactive Mind Map
Sacred Geometry Index
Saturday, May 2, 2009
Snowflakes: Hexagonal Symmetry
Golden Rectangle
Snowflakes are snow crystals form when tiny supercooled cloud droplets (about 10 μm in diameter) freeze. The individual ice crystals often have hexagonal symmetry. Although the ice is clear, scattering of light by the crystal facets and hollows/imperfections mean that the crystals often appear white in colour due to diffuse reflection of all spectrum of light by the small ice particles.
Click the figure below to see the interactive illustration of the Snowflakes: Hexagonal Symmetry.
See also:
Snowflakes: Hexagonal Symmetry
Golden Rectangles
Friday, May 1, 2009
Polygons Index
Theorems and Problems about Polygons
Read more: Polygons Index, Collection of Geometry Problems
Level: High School, SAT Prep, College geometry
Problem 287: Regular Octagon, Diagonals
Proposed Problem
See also:
Complete Problem 287: Regular Octagon, Diagonals
Collection of Geometry Problems
Level: High School, SAT Prep, College geometry