Math: Geometry: What's New, Recent Additions, College, High School, Kids - Page 138

Cyclic Quadrilateral: Ratio of the Diagonals
 

Problem 32.
Triangle, Cevian, Incircles, Tangents.

Problem 31. Right Triangle, Incircle, Collinears.
Problem 30. Right Triangle, Incircle, Inradius.

Faces on Mars and Earth. ESA probe confirms Face of Mars is a naturally formed hill.
Nestled in the clays of the Andes Mountains, near Colca Canyon, Arequipa, Peru, is the face of a man as viewed from space in Google Earth.

Interactive Mind Map of the Van Hiele Model of Geometric Thought
 

Ptolemy's Theorem.
 

Inca Calendar according to Guaman Poma's work 1615

Proposed Problem 29.
Right Triangle, altitude, incircle and inradius. Ten conclusions.

Problem 29: Geometry Help.
Facts you should know.

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