Welcome to Geometry from the Land of the Incas (Page
2 of 14)
Above, left: Butterfly specie registered in Machu Picchu, Lost City of the
Incas, Cuzco. Right: Butterfly theorem.
Welcome! Geometry Step-by-Step from the Land
of the Incas provides an eclectic mix of sound, science, and
Incan history in order to raise students' interest in Euclidean geometry.
Visitors will find geometry problems, proofs, quizzes, puzzles,
quotations, visual displays, "scientific
speculation", Cuzco, Machu Picchu, Lost City of the Incas, Nazca Lines, the Quipu, the Lord of Sipan, Caral: the oldest civilization in the Americas, and more.
Site created and maintained by Antonio Gutierrez.
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Recent
Additions (Page 2 of 14)
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680. |
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Proposed Problem 152.
Circumscribed Quadrilateral, Diagonal, Chord, Proportion.
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679. |
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Alturas de Machu Picchu by Los Jaivas.
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678. |
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Cuzco and Machu Picchu Condor's Eye View.
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677. |
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Machu Picchu Interactive Mind Map.
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676. |
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Machu Picchu and Golden Rectangle.
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675. |
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Chichen Itza and Golden Rectangle.
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674. |
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Petra and Golden Rectangle.
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673. |
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Christ the Redeemer and Golden Rectangle.
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672. |
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Colosseum and Golden Rectangle.
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671. |
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Proposed Problem 151.
Quadrilateral, Area, Trisection of Sides.
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670. |
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Proposed Problem 150.
Quadrilateral, Area, Trisection of Sides.
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669. |
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Proposed Problem 149.
Quadrilateral, Area, Midpoints.
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668. |
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The Geometry of Seeing. Perspective and Dawn of Virtual Space. Getty
Research Institute.
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667. |
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Kalicanto: Andean Music
Lamento de Zamponas,
Extranandote,
Hasta que muera el dia,
Doce de la noche
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667. |
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Proposed Problem 148.
Quadrilateral, Area, Midpoints.
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666. |
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Proposed Problem 147.
Quadrilateral, Area, Midpoints, Triangle.
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665. |
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Proposed Problem 146. Varignon's
Theorem: Quadrilateral, Midpoints, Parallelogram, Area, Perimeter.
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664. |
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Mind Mapping for Effective Content Management by Dr Stephen Evans
and the Revd Gareth J M Saunders from the University of St Andrews, UK.
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663. |
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Proposed Problem 145. Four
Triangles, Incircle, Tangent and Parallel to Side, Incenters,
Circumcenters.
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662. |
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Proposed Problem 144. Four
Triangles, Incircle, Tangent and Parallel to Side, Inradii.
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661. |
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Proposed Problem 143. Four
Triangles, Incircle, Tangent and Parallel to Side, Circumradii.
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660. |
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Proposed Problem 142. Four
Triangles, Incircle, Tangent and Parallel to Side, Areas.
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659. |
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Proposed Problem 141. Triangle,
Incircle, Tangent , Parallel, Perimeters.
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658. |
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Proposed Problem 140. Triangle,
Excircle, Tangent, Semiperimeter.
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657. |
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El Condor Pasa, Mind map.
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656. |
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Proposed Problem 139. Triangle
Area, Orthic Triangle, Semiperimeter, Circumradius.
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655. |
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Proposed Problem 138. Nagel's
Theorem, Orthic Triangle, Altitudes, Circumradius, Perpendicular.
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654. |
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Go Geometry Puzzles Mind Map.
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653. |
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Proposed Problem 137.
Orthic Triangle, Altitudes, Perpendicular, Incircle, Collinear Points,
Parallelogram.
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652. |
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Proposed Problem 136. Orthic
Triangle, Altitudes, Perpendicular, Concyclic Points.
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651. |
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Proposed Problem 135. Orthic
Triangle, Altitudes, Perpendicular, Parallel.
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650. |
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Proposed Problem 134. Orthic
Triangle, Altitudes, Angle Bisectors, Orthocenter, Incenter.
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649. |
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Pappus Theorem. Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
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648. |
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Pre-Incan tomb 1700 years old found in Peru, July 2008.
A Canadian-led team of archaeologists has unearthed the 1,700 year-old
tomb of a leader of the pre-Columbian Moche culture in northern Peru,
the scientists said.
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647. |
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Interactive Gergonne Line and Nobbs Points.
Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
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646. |
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Interactive Simson Line. Dynamic
Geometry.
Step-by-Step construction, Manipulation, and animation.
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645. |
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Triangle, Medians, Six Circumcenters Concyclic.
Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Prove proposition.
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644. |
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Trapezoid, Triangle, Diagonals, Midpoints.
Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Prove proposition.
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643. |
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Congruence. Index..
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642. |
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Similarity, Ratios, Proportions.
Index.
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641. |
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Areas Index.
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640. |
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Beautiful Earth.
128 beautiful pictures of our world.
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639. |
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Interactive Mind Map of Landscape of Terms, Brainstorming
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638. |
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Interactive Van Gogh Mind Map .
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637. |
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The Metamorphosis of the Cube Foldings and Unfolding between
Polygons and Polytopes.
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636. |
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The Truncated Octahedron Transformation
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635. |
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Dynamic Geometry.
Triangle: Incircle, Perpendicular, Angle Bisector. Prove proposition
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634. |
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Proposed Problem 133.
Triangle, Angle Bisectors, Collinear Points.
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633. |
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Proposed Problem 132.
Triangle, 60 degree, Orthocenter, Congruence, Midpoint.
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632. |
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Survivor: the Inca Trail to Machu Picchu by Doug Johnson
A slideshow based on the author's hike of the Inca Trail.
Machu Picchu Slideshow..
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631. |
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Math in the News Mind Map.
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630. |
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Proposed Problem 131. Van Aubel
Theorem, Concurrent Cevians, Sum of Ratios.
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629. |
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Proposed Problem 130. Triangle,
Concurrent Cevians, Sum of Ratios.
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628. |
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Proposed Problem 129. Triangle,
Concurrent Cevians, Sum of Ratios.
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627. |
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Proposed Problem 128. Incenter of
a Triangle, Angle Bisectors, Sum of Ratios.
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626. |
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Itīs Not How Good You Are, Itīs How Good You want To Be by Paul Arden.
Book Brief.
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625. |
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M.C. Escher Mind Map
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624. |
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M.C. Escher, Impossible Images. Slideshow.
Vincent van Gogh. Slideshow
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623. |
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Geometry in Action. Reuleaux's rotor: How Round is your Circle?
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622. |
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Euclid's Elements Book VI, Proposition 3: Angle Bisector Theorem .
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621. |
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Proposed Problem 127. Centroid
and Incenter of a Triangle, Parallel, Proportions.
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620. |
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Proposed Problem 126. Incenter of
Triangle, Angle Bisector, Proportions.
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619. |
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BMW GINA (Geometry and functions In 'N' Adaptations).
BMW Innovates with GINA Light Visionary Model based on Geometry and
functions in 'N' Adaptations.
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618. |
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The significance of the Pythagorean theorem by Jacob Bronowski.
Pythagorean Theorem, 47th Proposition of Euclid's Book I.
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617. |
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Geometry: Thinking about Thinking.
Pythagoras, Euclid, Euclidean geometry, inductive reasoning, deductive
reasoning.
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616. |
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Interactive Visual Mind Map of Go Geometry .
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615. |
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Proposed Problem 125. Area of
Triangle, Star, Trisection of Sides.
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614. |
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Proposed Problem 124. Area of
triangle, Similarity, Trisection of Sides.
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613. |
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Proposed Problem 123. Area of
triangle, Similarity, Trisection of Sides.
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612. |
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Proposed Problem 122. Marion
Walter's Theorem. Area of triangle and Hexagon, Trisection of Sides.
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