Geometry & Design: Ratio, Proportion, and Similarity - Propositions
Channel: Plan B Workshop
Date: 2020-03-25

In this tutorial, we continue our look at the relationship between ratio, proportion, and similarity.  Specifically, I introduce several propositions from Book VI of Euclid's elements. These will provide you with techniques that use the concept of similarity in order to construct segments whose lengths satisfy prescribed rational relationships with each other.


I would recommend following along with these propositions using David E. Joyce's online edition of Euclid's Elements:
https://mathcs.clarku.edu/~djoyce/java/elements/bookVI/bookVI.html#props