Math: Geometry: What's New, Recent Additions, College, High School, Kids - Page 145

Proposed Problems 1. Solve these problems about congruence of line segments, angles, and triangles and lift up your geometry skills.

Archimedes' Book of Lemmas. Exercise your brain. Archimedes wrote the "Book of Lemmas" more than 2200 years ago. Solve these 15 high school level problems and lift up your geometry skills.

The Quipu: Caral, Ancient Peru city reveals 5,000-year-old 'writing'.
Puruchuco: Knotty Incan Accounting Untangled.

Experiencing Geometry Poem. Taken from "Experiencing Geometry on Plane and Sphere," a classic textbook on Euclidean and non-Euclidean space. Used by permission of the author David W. Henderson.

The Nazca Lines are over 300 drawings on the ground (lines, triangles, trapezoids, spirals, birds, a spider, a monkey, flowers) located in the Nazca desert.

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