... triangle having the same base as the segment and an equal height.3Later, theorems worthy of mention suggested themselves to us, and wetook the trouble of preparing their proofs. They are these: first, ... equal to the line drawn from the vertex of the segment to the circumference of the circle which is the base of the segment.5Next to these, that, in every sphere, the cylinder having a1 The later ... below). The aim of these footnotes, then, is to help the readers in checking the validity of the argument.INTRODUCTION1 goal of the translation The extraordinary influence of Archimedes over the...