Elementa geometriæ planæ ac solidæ, qvibvs accedvnt selecta ex Archimede theoremata

æqua æquales funt æqualia æqualibus æquatur æquè æquilateri altitudo anguli angulus Archimedes bafes bafim bafis centro centrum circino circulo circulum circumferentia confequens coni conus corol Corollarium cuius cylindri cylindrus dato defcribe defin demonft demonftrandum Demonftratio diameter diametri diametrum duæ ducatur dupla effe efle erit erunt eſt Euclides fegmentum femper fibi mutuo figura fimiles fimul fint fiue fphæræ funt æquales fuper fuperficies fupra Geometria hæc igitur infcripta ipfi latera laterum latus lineæ maior maiorem minor omnibus parallela parallelepipeda Pars patet peripheria perpendicularis plano planum polygoni polygonum poteft prac prifmatis proinde proportio proportionis PROPOSITIO puncto pyramides pyramis quad quadrato quadratum quæ quàm Quoniam radij radius ratio rationem rect recta rectangulum rectis Scholium theorema triangula triangulum verò vnius vnum