The Elements of Euclid: With Select Theorems Out of Archimedes |
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Page x
... wrote Elements of all the Mathematicks , improv'd them , and made them more fit for Ufe . Wherefore he is deservedly to be reckon'd amongst the chief Compilers of Elements . Eudoxus 1 - He Eudoxus of Cnidos was not inferior to ( x )
... wrote Elements of all the Mathematicks , improv'd them , and made them more fit for Ufe . Wherefore he is deservedly to be reckon'd amongst the chief Compilers of Elements . Eudoxus 1 - He Eudoxus of Cnidos was not inferior to ( x )
Page 5
... Wherefore if all the Perpendiculars ( QL ) unto one of the two Parallels ( A B ) fhall be equal , the right Lines ( AB , CF ) are faid to be Pa- rallel . Parallels are produc'd , if the right Line ( LQ ) which is perpendicular to the ...
... Wherefore if all the Perpendiculars ( QL ) unto one of the two Parallels ( A B ) fhall be equal , the right Lines ( AB , CF ) are faid to be Pa- rallel . Parallels are produc'd , if the right Line ( LQ ) which is perpendicular to the ...
Page 9
... Wherefore , feeing the Angle AFC is the Angle of Incidence , which in fuch cafes is equal to the Angle of Reflexion , it is manifeft that BFD , which hath been proved equal to AFC , is the Angle of the Reflexion of the Ball A , and that ...
... Wherefore , feeing the Angle AFC is the Angle of Incidence , which in fuch cafes is equal to the Angle of Reflexion , it is manifeft that BFD , which hath been proved equal to AFC , is the Angle of the Reflexion of the Ball A , and that ...
Page 28
... Wherefore when each of the Triangles contains two ( b ) Pe Per 32. right Angles ( b ) , they muft altogether contain twice fo many right Angles as there are Sides . Now the Angles ( c ) Coroll , 3 - about the Point A , ( c ) do make ...
... Wherefore when each of the Triangles contains two ( b ) Pe Per 32. right Angles ( b ) , they muft altogether contain twice fo many right Angles as there are Sides . Now the Angles ( c ) Coroll , 3 - about the Point A , ( c ) do make ...
Page 36
... Wherefore one Side of a Triangle being known , and the Height , that is , the Perpendi cular which falls upon the known Side from the oppofite Angle , the Measure of the Triangle is given . As if the Bafe A B be of an 100 Feet , the ...
... Wherefore one Side of a Triangle being known , and the Height , that is , the Perpendi cular which falls upon the known Side from the oppofite Angle , the Measure of the Triangle is given . As if the Bafe A B be of an 100 Feet , the ...
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The Elements of Euclid: With Select Theorems Out of Archimedes Archimedes,André Tacquet,Euclid No preview available - 2015 |
Common terms and phrases
alfo alfo equal alſo Altitude Arch Archimedes Axis Bafe Baſe becauſe betwixt themſelves bifected Centre Circum circumfcrib'd Circumference confequently Conftruction conical Superficies conical Surfaces contain'd Coroll Corollary Cylinder defcrib'd defcribe demonftrated Diameter double drawn thro equal Angles equilateral Cone equilateral Triangle Euclid faid fame manner fcrib'd fecond felf fhall be equal fhew fhew'd Figure firft firſt folid Angle fome fore foregoing four right ftand fuppos'd given right Line greater hath Height Hypothefis infcrib'd infcribed Interfections leffer lefs likewife Line BC manifeft Mathematicks mean Proportional betwixt Meaſure Number oppofite pafs thro parallel Parallelepiped Parallelogram Pentagon perpendicular Plane Point Polygon Prifm Priſms Proclus produc'd PROP Propofition Pyramids Radius Rectangle right Angle right Line Scholium Segment Semidiameter Solid Sphere Square thefe Theorem theſe Thing thofe unto whatſoever whofe whole Superficies
Popular passages
Page 21 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Page xviii - A Scheme of the Solar Syftem, with the orbits of the planets and comets belonging thereto, defcribed from Dr. Halley's accurate Table of Comets, Philofoph.
Page xviii - Difcovery of Divine Truth : And of the Degree of Evidence that , ought to be expected in Divine Matters, 8vo.
Page xviii - Syllem briefly demonftrated. IV. Certain Obfervations drawn from that Syftem. V. Probable Conjectures of the Nature and Ufes of the feveral celeftial Bodies contain'd in the fame Syflem.
Page xviii - DHcovery of divine Truth, and of the degree of Evidence that ought to be expected in divine Matters. By William WbiftvK, MA Ibmetime Profeffor of the Mathematicks in the Univerfity of Cambridge.
Page 11 - Because the angle A is equal to the angle C, and the angle...
Page xviii - Bodies contained in the fame Syftem. VI.' Important Principles of NATURAL RELIGION Demonftrated from the foregoing Obfervations.
Page xix - How great a Geometrician art thou, O Lord! For while this Science has no Bounds, while there is for ever room for the Discovery of New Theorems, even by Human Faculties; Thou art acquainted with them all at one View, without any Chain of Consequences, without any Fatigue of Demonstrations.
Page 211 - Side next to the Diameter : and let the right Lines BH, CG, DF, join the Angles which are equally diftant from A. I fay that the...
Page 221 - Axis, is alfo given j it is manifeft that each of the Segments become known. Now both the foregoing, and all the reft of the Theorems which follow...