Previous 
Next 
Recent Additions (Page 26 of 80)




Problem
537.
Rectangle, Midpoints, Diagonal, Angle Bisector. 

Simple English: Geometry.
Interactive Mind Map. English ESL.


Problem
536.
Intersecting Circles, Chord, Perpendicular. 

Problem
535.
Sawayama  Thebault's theorem: Triangle, Incircle, Circle, Center, Tangent,
Collinear. 

English ESL/EFL: Conversations: Driving Mind Map.


English ESL/EFL: Conversations:
Election Mind Map.


English ESL/EFL: Conversations:
Employment Mind Map.


English ESL/EFL: Conversations:
Food Mind Map.


English ESL/EFL: Conversations:
Health Mind Map.


Problem
534.
Right Triangle, Squares, Perpendicular, Dissection, Areas. 

Online Jigsaw Puzzle:
The Great Wall of China.
Golden Rectangles, Droste Effect
40 Piece Birds. 

Golden Rectangle and Seven Wonders of the Ancient World
 Index


The Great Pyramid of Giza and Golden Rectangles.


Problem
533.
Euclid's
Elements, Book XIII, Proposition 10. One page visual illustration. 

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. 

Problem 532.
Triangle, Circumcircle, Equal Angles, Perpendicular, Area. 

Pythagoras and Related Search Term Suggestions, Interactive Mind Map. 

Problem 531.
Triangle, Angle Bisector, Midpoint, Parallel, Perimeter, Semiperimeter. 

Business
Mind Mapping  Index 

Outline of Business, Interactive Mind Map 

Semiperimeter, Perimeter Index.
Theorems and Problems. 

Problem 530.
Cyclic Quadrilateral, Diagonal, Diameter, Perpendicular, Congruence. 

Geometry Problems 241  250.
Triangle, Quadrilateral, Congruence, Area, Parallelogram, Square, Diagonal, Center, Napoleon, Median, Midpoint. 

Problem 529.
Right Trapezoid, Circle, Diameter. 

Benoit Mandelbrot: the Fractal Geometry of Roughness  Video and News
At TED2010, mathematics legend Benoit Mandelbrot (19242010) develops a theme he first discussed at TED in 1984  the extreme complexity of roughness, and the way that fractal math can find order within patterns that seem unknowably complicated.


Ptolemy's Theorems and Problems  Index. 

Geometry Problems 231  240.
Triangle, Quadrilateral, Square, Parallelogram, Trapezoid, Altitude, Distances, Midpoint, Perpendicular, Transversal. 

Problem 528.
Triangle, Medians, Perpendicular, Measurement. 

Online Jigsaw Puzzle:
Geometry  Index.


Problem 527.
Circle, Tangent, Secant, Chord, Midpoint, Measurement. 

Problem 526.
Equilateral Triangle, Circumcircle, Chord, Measurement. 

Class Project: Mandelbrot Set, music by Jonathan Coulton, Cornell Workshop  Video and News. 

Problem 525.
Circles, Diameter, Tangent, Radius, Congruence, Measurement. 

Problem 524.
Circle, Equilateral Triangles, Midpoint, Side, Measurement. 
Go to Page: Previous 
1 
10 
20 
30 
40 
50 
60 
70 
80 
Next
