📗 Excerpt from Ioannis Verneri De Triangulis Sphaericis Libri Quatuor De Meteoroscopiis Libri Sex Cum Prooemio Georgii Ioachimi Rhetici, Vol. 1: De Triangulis SphaericisEt quia BE quadrans super BD segmentum perpendicularis est, ergo E signum polus est segmenti bcd, et anguius bge rectus. Ergo angulus agb recto minor, et per diffinitionem [vi] acutus. Igitur uterque duorum angulorum bag et B GA est acutus.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.