|
Geometry from the Land of the
Incas - Recent
Additions (Page 1 of 14)
Go to Page: Previous | 1 |
2 | 3
| 4 |
5 |
6 | 7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
Next |
|
|
 |
GoGeometry
New website and domain for Geometry from the Land of the Incas. |
|
570. |
 |
Proposed Problem 107.Angles,
Triangle. Cevian.
|
|
569. |
 |
Geometry Projects Brainstorming.
|
|
568. |
 |
Proposed Problem 106. Angles,
Triangle. Cevian.
|
|
567. |
 |
Geometry Waldorf Education. Grade Six.
|
|
566. |
 |
Proposed Problem 105.Angles,
Triangle. Interior Point.
|
|
565. |
 |
Proposed Problem 104. Angles,
Triangle.
|
|
564. |
 |
Mind Map of Geometry New York State Regents Exam Preparation
|
|
563. |
 |
The Pythagorean Curiosity Triangles and squares, fifteen
conclusions
|
|
562. |
 |
Proposed Problem 103.Equilateral
Triangle Area, Interior Point, Heron's Formula.
|
|
561. |
 |
Potato Inca's Food
As Other Staples Soar, Potatoes Break New Ground.
|
|
560. |
 |
Bandurria is the oldest Peruvian archaeological site, says expert
Bandurria may rival Caral as oldest citadel in Americas.
Satellite View: circular ceremonial center.
|
|
559. |
|
Proposed Problem 103.Equilateral
Triangle Area, Interior Point, Heron's Formula.
|
|
558. |
 |
Geometry shapes sound of music. Journal Science publishes paper by
music professors from Florida State, Princeton and Yale.
|
|
557. |
 |
Proposed Problem 102.Equilateral
Triangle Area, Interior Point.
|
|
556. |
 |
Proposed Problem 101.Equilateral
Triangle, Pythagorean Theorem, Angles.
|
|
555. |
 |
Machu Picchu and Yale University.
 April
17, 2008
A compilation of news stories on the controversy.
The Peruvian government is demanding that Yale return the artifacts
found at the ancient Incan city of Machu Picchu.
|
|
554. |
 |
Triangle and Squares Theorem 1: with Interactive Geometry Software.
Step-by-Step construction, Manipulation, and animation.
|
|
553. |
 |
Bottema's Theorem: Triangle and Squares with Interactive Geometry
Software.
Step-by-Step construction, Manipulation, and animation.
|
|
552. |
 |
Eight-Point Circle Theorem
Step-by-Step construction, Manipulation, and animation.
|
|
551. |
 |
Proposed Problem 100. Circle
Area, Archimedes' Book of Lemmas.
|
|
550. |
 |
Proposed Problem 99: Circle Area, General Extension to Pythagoras'
Theorem.
|
|
549. |
 |
Proposed Problem 98.
Quadrilateral Area, Centroid, Similarity.
|
|
548. |
 |
Complete Quadrilateral: Ortholine-Steiner Line.
Using TracenPoche Dynamic Software
Step-by-Step construction, Manipulation, and animation
|
|
547. |
 |
Proposed Problem 97. Similar
Triangles, Areas. |
|
546. |
 |
Proposed Problem 96. Similar
Triangles, Incenters, Parallelogram. |
|
545. |
 |
Proposed Problem 95. Similar
Triangles, Inradii, Parallel. |
|
544. |
 |
Proposed Problem 94. Similar
Triangles, Circumcircles, Circumradii. |
|
543. |
 |
Gergonne's Theorem: Triangle and Concurrent Cevians. |
|
542. |
 |
Proposed Problem 93. Similar
Triangles, Circumcircles, Parallelogram. |
|
541. |
 |
Proposed Problem 92. Similar
Triangles, Circumcircles, Circumradii, Parallel. |
|
540. |
 |
Proposed Problem 91. Similar
Triangles, Altitude, Parallel. |
|
539. |
 |
Proposed Problem 90.
Quadrilateral and Triangle Areas, Midpoints. |
|
538. |
 |
Proposed Problem 89. Triangles of equal area, Midpoints. |
|
537. |
 |
Charlton Heston and Machu Picchu (1954). Film legend Charlton Heston
dead at 84.
|
|
536. |
 |
Wayanay Inca:
Suenos del Inca,
Pastorcita,
Bamboo,
Dulce Jazmine,
Regresa Amor
Yawar Inka:
Mensaje Inka,
Aysha |
|
535. |
 |
Proposed Problem 88. Triangle and Quadrilateral Areas, Midpoints.
|
|
534. |
 |
Proposed Problem 87. Area of
Quadrilaterals and Midpoints of Diagonals. |
|
533. |
 |
Intouch and Extouch Triangles. Puzzle cut: 20 Piece Classic
Based on
Proposed Problem 86. |
|
532. |
 |
Proposed Problem 86. Intouch and
Extouch Triangles, Areas |
|
531. |
 |
Puzzle: Marion Walter's theorem. Puzzle cut: 12 Piece ZigZag
Based on
Marion Walter's theorem |
|
530. |
 |
Puzzle: Metamorphosis III Puzzle cut: 20 Piece Birds
Base on
Metamorphosis III |
|
529. |
 |
Contact Triangles. Puzzle cut: 22 Piece Polygons
Based on
Proposed Problem 85 |
|
528. |
 |
Proposed Problem 85. Contact
Triangles Areas, Incircle, Excircle. |
|
527. |
 |
Proposed Problem 84. Contact
Triangles Areas, Incircle, Excircle, Inradius, Exradius. |
|
526. |
 |
Espiritu Andino (Andean Spirit):
El Condor Pasa,
Ocarina,
Pan Flute,
San Juanito,
Tupac Amaru,
Takirari,
Poncho |
|
525. |
 |
History of
the Incas
1 - Inca Trail,
2,
3,
4,
5,
6. |
|
524. |
 |
Proposed Problem 83. Area of the
Excircle Contact Triangle, exradius, circumradius. |
|
523. |
 |
Thank God it’s Pi Day: Next Friday is a rather special date. The
month (3) and the day (14) give us 3.14 which is pi to two decimal
places. That’s enough for teachers around the world to mark it as
International Pi Day.
Video: Pi Day made by a 7th grade math teacher for students in
Louisville, KY. |
|
522. |
 |
MAA's Mathematical Study Tour of Peru, the Land of the Incas.
The Mathematical Association of America is announcing the 6th annual MAA
Mathematical Study Tour of Peru.
Explore Peru, its mathematics, cultural heritage and scenic wonders,
with leadership by two Peru experts: Douglas Sharon, former director of
the Hearst Museum of Anthropology at UC-Berkeley and Carrie Brezine,
manager of the khipus database at Harvard. |
|
521. |
 |
Proposed Problem 82: Triangle.
Area of the Contact Triangle, inradius, circumradius. |
|
520. |
 |
Proposed Problem 81: Triangle.
Area of a triangle, side, inradius, circumradius. |
|
519. |
 |
Proposed Problem 80: Triangle.
Area of a triangle, side, incircle, inradius. |
|
518. |
 |
Alpamayo Peak. Almost perfect
pyramid of ice. Elevation 19,511 ft (5,947 meters). |
|
517. |
 |
Proposed Problem 79: Triangle.
Similarity, Altitudes, Orthocenter, Incircles, Inradii. |
|
516. |
 |
Proposed Problem 13: Angles of a Triangle.
Hints are provided.
|
|
515. |
 |
Proposed Problem 1: Angles of a Triangle.
Midpoint, Congruence. Hints are provided. |
|
514. |
 |
I have used Geometry Expressions, the world's first Interactive
Symbolic Geometry System, to visualize the Archimedean Twins and check
out a variety of conjectures. |
|
513. |
 |
Proposed Problem 78: Angles of a Circle.
Perpendicular and parallel lines, Midpoint, Diameter, Chord, Cyclic
quadrilateral, Congruence. |
|
512. |
 |
Computers can use geometry to predict pretty faces
The Renaissance artists’ formula for beauty. |
|
511. |
 |
Proposed Problem 77: Angles of a Circle.
Parallel lines, Cyclic quadrilateral. |
|
510. |
 |
Andean Music, Damaris Mallma:
Pukllay / Carnival,
Dame una Senal / Give me a Sign,
Triste y Sola,
Imillitay (Tinku) |
|
509. |
 |
Andean Music, Damaris Mallma:
Tusuy Kusun, the winner of Vina del Mar 2008,
Tusuy Kusun in Lima, Peru 2007 |
|
508. |
 |
Andean Music, Los Kjarkas:
Llorando se Fue,
Imillitay (Tinku). |
|
507. |
 |
Geometry of Love Live in China 2004 by Jean Michel Jarre.
Cone, Sphere, Cylinder... |
|
506. |
 |
Plaza in Peru may be the America's oldest urban site
The circular structure at the ruins of Sechin Bajo is about 5,500 years
old, archaeologists report. |
|
505. |
 |
Ancash: Huaraz, Huascaran, Chavin, Sechin, Chanquillo, Alpamayo and More. |
|
504. |
 |
Proposed Problem 76: Area of a Circle.
Square, Circle, Circular Sector. |
|
503. |
 |
Sacred Geometry: Introduction by
Charles Gilchrist. |
|
502. |
 |
Sacred Geometry: Seven Tangent Circles by
Charles Gilchrist. |
|
501. |
 |
Sacred Geometry: the Vesica Piscis by
Charles Gilchrist. |
|
|
