Philippi Lansbergii Cyclometriae novae libri dvo .. (1616)
Lansberge, Philippe van, 1561-1632 · Middelbvrgi : Ex officina Richardi Schilders · leaf 60
Deturque primum in minore circu d:ndus ex maiore circulo. Per primum porifma huius clementi , pet pendicularis F G eft equalis arcui dato E C. Per fecundum veró porifia huius, te&z F G, cui zequalis eftipfa H M; eft etiam equalis | arcus O K. Itaque per 11 Quinu Euclidis, arcus O K maioris circu-…
Circle · Geometry -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Gnomonice Andreae Schoneri Noribergensis, hoc est, De descriptionibvs horologiorvm sciotericorvm omnis generis, proiectionibus circulorum sphaericorum ad superficies, cum planas, tum conuexas concauasq[ue], sphaericas, cylindricas, ac conicas, item delineationibus quadrantum, annulorum, &c. libri tres (1562)](https://img.insideoutlibrary.com/img/200/ia-gri_33125009484227-112-0.webp)
![An illustration from Gnomonice Andreae Schoneri Noribergensis, hoc est, De descriptionibvs horologiorvm sciotericorvm omnis generis, proiectionibus circulorum sphaericorum ad superficies, cum planas, tum conuexas concauasq[ue], sphaericas, cylindricas, ac conicas, item delineationibus quadrantum, annulorum, &c. libri tres (1562)](https://img.insideoutlibrary.com/img/200/ia-gri_33125009484227-33-0.webp)