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Posts published in “Euclid, Geometry”

Euclid’s Proposition I.4

Proposition I.4 presents Euclid’s proof of what is called the “Side-Angle-Side Theorem” in modern schools. The question students often ask is in Classical Geometry, when…

HOW TO STUDY A GEOMETRY PROPOSITION

In Classical Geometry, students must learn how to study Propositions.  To do this, they must understand the parts of propositions and how propositions work.  THE…

Euclid, Geometry. Book I, Proposition 1

In this lesson, we study the demonstration of the first proposition in Euclid’s Geometry (Proposition 1.1). The analysis of the proposition is provided below. To…

Classical Geometry Text Now Available in Print

The text of Euclid’s Elements used in the Classical Liberal Arts Academy’s Classical Geometry course is now available in a large study edition (8.5″ x…

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