The Elements of Euclid: With Select Theorems Out of Archimedes |
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Page 11
... Height of a Tower , or any ele- vated Point . For when the Sun is elevated 45 Degrees above the Horizon , the Shadow which the Tower cafts towards the Horizon will be exactly equal to its Height . For , by reafon that the Angle ACB is ...
... Height of a Tower , or any ele- vated Point . For when the Sun is elevated 45 Degrees above the Horizon , the Shadow which the Tower cafts towards the Horizon will be exactly equal to its Height . For , by reafon that the Angle ACB is ...
Page 30
... Heights of Mountains above the Horizon as their horizontal Lines . Let ABC be the Side of a Mountain , to which apply ... Height AG . Coroll . ( 2. ) Hence alfo we learn to estimate the Com- pofition of Motions . Let a Body placed at Abe ...
... Heights of Mountains above the Horizon as their horizontal Lines . Let ABC be the Side of a Mountain , to which apply ... Height AG . Coroll . ( 2. ) Hence alfo we learn to estimate the Com- pofition of Motions . Let a Body placed at Abe ...
Page 36
... Height may be found Geometrically by 12 and 13. lib . 2. as we fhall there fhew . In a rectangle Triangle , the Height is the fame with either of the Sides about the right Angle . Half of this therefore multiplied into the other Side ...
... Height may be found Geometrically by 12 and 13. lib . 2. as we fhall there fhew . In a rectangle Triangle , the Height is the fame with either of the Sides about the right Angle . Half of this therefore multiplied into the other Side ...
Page 45
... Height , the other A F the Breadth of it . Now if the Side A C be understood to be carried perpendicularly along the whole AF , or AF along AC , by that Motion the Rectangle or its Area will be produc'd . Wherefore a Rectangle is ...
... Height , the other A F the Breadth of it . Now if the Side A C be understood to be carried perpendicularly along the whole AF , or AF along AC , by that Motion the Rectangle or its Area will be produc'd . Wherefore a Rectangle is ...
Page 113
... Height of a Fig . 51 . Tower , or any elevated Point , by only the Shadow of a Staff . Fix the Staff FL ... Height of the Tower ZB . Whence as AF , the Distance of the Staff from the Point of the Shadow , is to FL , the Length of the ...
... Height of a Fig . 51 . Tower , or any elevated Point , by only the Shadow of a Staff . Fix the Staff FL ... Height of the Tower ZB . Whence as AF , the Distance of the Staff from the Point of the Shadow , is to FL , the Length of 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...