Volume II: Basic Euclidean Geometry

The present second volume starts with Euclidean geometry, and the text gets a more educational and even more elementary flavour.

Here I start with Thales theorem about the angle in a semicircle, and continue with Euclid's related theorems about angles in a circle.
The most simple parts of the Euclidean geometry are given in detail, as well as the later parts about similarity, and finally area in

Euclidean geometry with the theorem of Pythagoras and trigonometry, and the measurement of the ci...