


Etching and Typography of Geometry Problem 640.
Archimedes Book of Lemmas: Proposition 1
Using iPad Apps. 

Geometry Problem 1374. Isosceles Triangle, Exterior Cevian, Incircle, Excircle, Tangency Points, Parallel Lines. 

Typography
art of Problem 1374. 

Geometry Problem 1373. Isosceles Triangle, Exterior Cevian, Inradius, Exradius, Altitude to the Base. 

Typography
art of Problem 1373. 

Geometry Problem 1372. Equilateral Triangle, Exterior Cevian, Inradius, Exradius, Altitude, Sketch, iPad Apps. 

Cevian Definition.


Einstein and
the Pythagorean theorem proof .
About his "holy geometry book" (Euclid's Elements) Similarity of
triangles.


Geometry Problem 1371: Equilic
Quadrilateral 5 

Etching and Typography of Geometry Problem 1367: Equilic
Quadrilateral using iPad Apps. 

Typography of Geometry Problem
812. 

Geometry Problems
1361  1370. 

Geometry Problem 1370: Equilic
Quadrilateral 4 

Geometry Problem 1369: Equilic
Quadrilateral 3 

Geometry Problem 1368: Equilic
Quadrilateral 2 

Geometry Problem 1367: Equilic
Quadrilateral 1 

Geometry Problem 1366.
Square, Angle Bisector, Perpendicular, Concyclic Points, Circle, Sketch, iPad Apps. 

Typography of Problem 491. 

Geometry Problem 1365.
Circle, Tangent, Secant, Chord, Parallel, Midpoint, Sketch, iPad Apps. 

Yanacocha Gold Mine,
Cajamarca, Peru, Open Pit Mining Art


Geometry Problem 1364.
Square, Inscribed Circle, Area, Angle Bisector, Perpendicular, 45 Degrees, Sketch, iPad Apps. 

Antamina Copper Mine, Peru, Open Pit Mining Art


Geometry Problem 1363.
Square, Angle Bisector, Perpendicular, 45 Degrees, Angle, Sketch, iPad Apps. 

Affinity Photo
for iPad Mind Map. 

Geometry Problem 1362.
Equilateral Triangle Inscribed in a Circle, Lunula, Ratio of Areas, Tangent, Sketch, iPad Apps. 

Geometry Problem 1361.
Triangle, Two NinePoint Circles, Feuerbach's Circle, Euler's Circle, Congruent Angles, Sketch, iPad Apps. 

Geometry Problem 1360.
Triangle, NinePoint Circle, Feuerbach's Circle, Euler's Circle, Cyclic Quadrilateral, Concyclic Points, Sketch, iPad Apps. 

Geometry Problem 1359.
Triangle, Circumcircle, Congruent Angles, Midpoints. 

Geometry Problem 1358.
Regular Dodecagon, Diagonals, Concurrency, Points, Lines. 

Geometry Problem 1357.
Regular Dodecagon, Diagonals, Concurrency, Collinearity, Points, Lines. 

Word Cloud of
the Regular Heptagon. 

Basic English ESL: Conversation Questions and Answers by 75 Topics, Mind Map.


Geometric Art of Problem 63.
Regular Heptagon 

Typography of Geometry
Problem 373. 

Typography of Geometry Problem 1304. 

Geometry Problem 1356.
Quadrilateral, Triangle, Angle, 30 Degrees, Congruence. 

Etching of the Taj Mahal.
Using iPad Apps. 

Typography of Geometry Problem 767
Using iPad Apps. 

Typography of Geometry Problem 752
Using iPad Apps. 

Typography of Geometry Problem
1038.
Using iPad Apps. 

Typography of Geometry Problem 180. 

Geometric Art Problems 1120. 

Typography of Geometry Problem
71 using iPad Apps. 

Typography of Geometry Problem
714. 

Geometric Art Problems 110, iPad Apps. 

R Installation and Administration, Interactive Mind Map. Statistical computing and graphics.


Geometry Problem 1355.
Triangle, Midpoint, Median, Circle, Chord, Equal Product of measure of segments. 

R programming: R Data Import/Export, Interactive Mind Map. Statistical computing and graphics.


Geometry Problem 1354. Circle, Tangent Lines, Secant, Chord, Center, Parallel Lines. 
v 
Introduction to R programming, Interactive Mind Map. Statistical computing and graphics.


Typography of Geometry Problem 866. 

Visualization of Technical Information, Mind Map


Geometric Art Problems
6170. 

Geometric Art Problems
5160. 

Geometric Art Problems
3140. 
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