
Go Geometry  Recent Additions
(Page 50)




Proposed Problem 428.
Quadrant of a circle, Square, Angle bisector, Measurement. 

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

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

Geometric Art: Mobile Apps, the Tricolor Beagle Dog and Delaunay Triangulation, iPad.


Geometric Art: Isolines, Adinkra Symbol, Nea Onnim No Sua a Ohu, Knowledge, Learning, Parallel Lines 

Morenci Copper Mine, Arizona, Map and News, Isolines


Geometric Art: Isolines, Adinkra Symbol, Ananse Ntontan, Wisdom, Software, iPad, Parallel Lines 

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

Euclid's Elements Book I, Proposition 8: (SideSideSide SSS Congruence) 

Euclid's Elements Book I, Proposition 7
Given two straight lines constructed on a straight line (from its
extremities) and meeting in a point,... 

Proposed Problem 427.
Triangle, Two Altitudes, Square of a Side. 

Euclid's Elements Book I, Proposition 5: (Pons Asinorum) Isosceles
triangles 

Euclid's Elements Book I, Proposition 6: Converse of I.5
"Proof by contradiction," also called reductio ad absurdum.



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