Geometry from the Land of the Incas 6/80


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Recent Additions (Page 6 of 80)




Geometric Art of Pascal's
Theorem


Jigsaw Puzzle: Pascal's Theorem
24 Pieces.


Jigsaw Puzzle: Problem 1146,
Triangle, Angles, Great Pyramid
at Caral  Supe. 35
Quadrilaterals Pieces.


Geometry Problem 1187
Triangle, Quadrilateral,
Midpoints, Area.


Jigsaw Puzzle: Problem 1182: Two
Squares. 35 Pieces.


Pascal's Theorem Index


Kaleidoscope of Problem 974
based on Poincare Disk Model.
iPad Apps.


Geometry Problem 1186
Right Triangle, Square,
Inscribed Circle, Tangent,
Quadrilateral, Area.


Geometry Problem 1169 Complete
Quadrilateral, Orthocenters of the
Component Triangles, Collinear Points,
Ortholine, Steinerline, Orthocentric
line.


Geometry Problem 1185 Similar Rectangles, Four
Quadrilaterals, Sum of the Areas, Metric Relations.


Geometry Problem 1184 Right Triangle, Square,
Inscribed Circle, Tangent, Concurrent Lines.


Geometry Problem 1183 Parallelogram, Diagonals,
Circle, Tangent Line.


Geometry Problem 1182 Two Squares, Four
Quadrilaterals, Sum of the Areas, Metric Relations.


Puzzle: Euler Line and Nine Point Center
See also 96 Piece triangles


Geometry Problem 1181 Cyclic Quadrilateral and
Tangential Quadrilateral, Diameter as a Diagonal,
Incenter, Circumcenter.


Word Cloud: Popular Keywords for SEO and News


String Art 15: Bézier curves, Geometric Pattern,
Symmetry, Software


Stonehenge builders had geometry skills to rival
Pythagoras
Five years of detailed research, carried out by the
Oxford University landscape archaeologist Anthony
Johnson, claims that Stonehenge was designed and built
using advanced geometry.


Pi: Word Cloud and News.
Archimedes' Mathematical
constant.


Geometry Problem 1177
Triangle, Two Angle
Bisectors, Metric
Relations.


Geometry Problem 1180 Quadrilateral, 120 Degrees,
Diagonals, Perpendicular.


Geometric art of triangle centers visual summary Delaunay
Triangulation, Circular Random Composition, iPad Apps.


Geometry Problem 1179 Triangle, Centroid, Transversal,
Sum of Ratios, Sides.


Geometry Problem 1178
Triangle, Angle
Bisector, Metric
Relations.


Geometry Problem 1176
Cyclic Quadrilateral,
Diagonals, Six
Diameters, Circles,
Collinear Points,
Concurrent Lines.


Geometry Problem 1175:
Six Tangential or
Circumscribed
Quadrilaterals Theorem


Geometry Problem 1174
Triangle, Quadrilateral, Double,
Triple, Angle, Congruence,
Excenter, Angle Bisector.


2015 Top Metals & Mining
Companies in the World, Forbes
Global 2000, Mind Map.


Artwork of Geometry Problem
1174, Triangle, Angle, Delaunay
Triangulation, Circular Random
Composition, iPad Apps.


Math Graduate Courses by the MIT
OpenCourseWare, Interactive Mind
Map. Free publication of
MIT course materials.


Artwork of Geometry Problem 170,
Trapezoid, Triangle, Circular Random
Composition, iPad Apps


Geometry Problem 1173 Triangle,
Cevian, Angle, Congruence, Similarity.


Geometry Art: Room of
the Three Windows, Machu
Picchu.


Geometric Art: Isolines or Contour Lines of Problem 1150,
Circle, Perpendicular Secants, 90 Degrees, Parallel Lines


String
Art 02:
Bézier
curves,
Geometric
Pattern,
Symmetry,
Software


Kaleidoscope of Word Cloud of
Circle based on Poincare Disk
Model.


Geometry Problem 1172 Cyclic
Quadrilateral, Circle, Secant, Triangle,
Similarity, Metric Relations.


Geometric Art: Kaleidoscopic Patterns of
Santa Claus.


Geometry Art 871  880. Congruent
Circles, Intersecting Circles, Secant, Center,
Angle Trisection, Triple Angle.


Geometry Problem 1171 Area of a
Triangle in terms of the three altitude
or heights h_{a}, h_{b},
h_{c}.


Geometry Problem 1170 Area of a
Triangle in terms of the three sides,
abc.


String Art 14: Bézier curves, Geometric
Pattern, Symmetry, Software


Geometry Problem 1168
Construction of the Inscribed Circle of
the Arbelos, Semicircles, Diameter,
Circle, Triangle, Circumcircle, Tangent.


Geometric Art: Isolines or Contour Lines
of Problem 1168, Inscribed Circle of the
Arbelos, Semicircles, Diameter, Triangle


Geometry Problem 1167.
Triangle, Circle,
Circumcircle,
Perpendicular, 90
Degrees, Collinear
Points.


Geometry Problem 1166.
Triangle, Circles,
Diameters, Secant,
Midpoint, Congruence.


Kaleidoscope of Word
Cloud of Square based on
Poincare Disk Model.


Geometry Problem 1165.
Right Triangle, Circle,
Center, Radius,
Cathetus, Perpendicular,
90 Degrees, Perimeter,
Metric Relations.


Geometry Problem 1164.
Triangle, Angle
Bisector, Cevian.


Geometry Problem 1163.
Isosceles Triangle,
Congruence, Double
Angle, Circle, Concyclic
Points, Circumcenter,
Perpendicular, Angle
Bisector.


Geometry Problem 1162.
Triangle, Congruence,
Double Angle, Parallel
Lines, Circle,
Circumcenter.


Geometry Problem 1161.
Scalene Triangle, 60
Degrees, Angle,
Orthocenter,
Circumcenter,
Equilateral Triangle,
Congruence.


Geometry Problem 1160.
Triangle, Three Squares,
Area, Equivalent
Triangles.


Geometric Art: Mobile
Apps, Ray of Lights,
Circle, Hexagon,
Patterns.


Geometry Problem 1159.
Triangle, Circumcircle,
Sagitta, Chord, Arc,
Metric Relations.


Geometry Art Problem
1161. Triangle,
Circle.


Geometry Problem 1158.
Four Tangent Circles,
Tangent Chord, Radius,
Metric Relations.


Kaleidoscope of Problem
1160 based on Poincare
Disk Model.


Geometry in the Real World: Hollywood Sign, L.A.


Geometry Problem 1157. Four Circles, Mutually Tangent, 90
Degrees, Radius, Metric Relations.


Geometry Problem 1156. Square, Tangent Line, 90 Degrees,
Metric Relations.


Geometry Problem 1155. Right Triangle, Altitude,
Incenter, Incircle, Area.


Geometry Problem 1154. Sangaku Three circles and a
tangent line.


Geometric Art: Isolines or Contour Lines of Problem 1153,
Triangle, Angle Bisectors, Perpendicular


Geometry Problem 1153. Triangle, Angle Bisectors,
Perpendicular, Congruence.


Kaleidoscope of Word Cloud of Triangle based on Poincare Disk
Model.


Geometry Problem 1152. Triangle, Quadrilateral, Angle,
10, 20, 30 Degrees.


Geometry Problem 1151. Circle, Diameter, Chord,
Perpendicular, 90 Degrees, Metric Relations.


Geometry Problem 1150. Circle, Perpendicular Secants, 90
Degrees, Congruence.


Geometry Problem 1149. Isosceles Triangle, Altitude,
Cevian, Incircles, Tangent, Congruence.


Dynamic Geometry Problem 1148
Static Geometry Problem 1148. Right Triangle, Incircle,
Circumcircle, Tangent, Radius. GeoGebra, HTML5 Animation for
Tablets (iPad, Nexus).


Geometric Art: Isolines, Triquetra, Celtic Knotwork, Trefoil
Knot, Parallel Lines, Geometry for Kids, Software, iPad,
Parallel Lines


Adobe Slate for iPad, a Free Visual Storytelling App.
Geometry Problems 110.


Geometry Problem 1147. Scalene Triangle,
Orthocenter, Circumcenter, Congruence, Equilateral
Triangle.


Geometric Art: Isolines, Celtic Maze, Spiral Pattern, Geometry
for Kids, Software, iPad, Parallel Lines


Geometry Problem 1146. Triangle, Interior Point, 10, 20,
30, 130 degrees, Congruence.


Geometry Problem 1145. Three Squares, Midpoints.


String Art,
Geometric
Patterns, Bezier
Curves, Symmetry
 Index.
The line gets a
lot of
attention, with
wire and string
art.

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