Euclid's Elements of Geometry,: From the Latin Translation of Commandine. To which is Added, A Treatise of the Nature of Arithmetic of Logarithms; Likewise Another of the Elements of Plain and Spherical Trigonometry; with a Preface...Tho. Woodward at the Half-Moon, between the Two Temple-Gates in Fleet-street; and sold by, 1733 - Geometry - 397 pages |
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Page 10
... fore both CA and CB are each equal to AB . But Things equal to one and the fame Thing , are equal between themselves , and confequently CA is equal to CB ; therefore the three Sides CA , A B , B C , are equal between themselves . And fo ...
... fore both CA and CB are each equal to AB . But Things equal to one and the fame Thing , are equal between themselves , and confequently CA is equal to CB ; therefore the three Sides CA , A B , B C , are equal between themselves . And fo ...
Page 10
... but they have a common Bafe BC . There¬ fore alfo the Triangle BFC will be equal to the Triangle CG B , and the remaining Angles of the one Ax . 3 . 2 . equal equal to the remaining Angles of the other , each 8 Book I. Euclid's ELEMENTS .
... but they have a common Bafe BC . There¬ fore alfo the Triangle BFC will be equal to the Triangle CG B , and the remaining Angles of the one Ax . 3 . 2 . equal equal to the remaining Angles of the other , each 8 Book I. Euclid's ELEMENTS .
Page 15
... fore the Angle ACD , is greater than the Angle BAE . After the fame manner , if the Right Line BC , be bifected , we demonstrate that the Angle BCG , that is , the Angle A CD , is greater than the Angle ABC . Therefore one Side of any ...
... fore the Angle ACD , is greater than the Angle BAE . After the fame manner , if the Right Line BC , be bifected , we demonstrate that the Angle BCG , that is , the Angle A CD , is greater than the Angle ABC . Therefore one Side of any ...
Page 19
... fore AC is not lefs than AB . But likewise it has been proved not to be equal to it : Wherefore AC is greater than AB . Therefore the greater Angle of every Triangle fubtends the greater Side ; which was to be demonftrated . PROPOSITION ...
... fore AC is not lefs than AB . But likewise it has been proved not to be equal to it : Wherefore AC is greater than AB . Therefore the greater Angle of every Triangle fubtends the greater Side ; which was to be demonftrated . PROPOSITION ...
Page 21
... fore the Angle BDC fhall be much greater than the Angle BAC . And fo if two Right Lines be drawn from the extreme Points of one Side of a Triangle to any Point within the fame ; these two Lines fhall be lefs than the other two Sides of ...
... fore the Angle BDC fhall be much greater than the Angle BAC . And fo if two Right Lines be drawn from the extreme Points of one Side of a Triangle to any Point within the fame ; these two Lines fhall be lefs than the other two Sides of ...
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Euclid's Elements of Geometry: From the Latin Translation of Commandine. to ... John Keill No preview available - 2014 |
Common terms and phrases
adjacent Angles alfo equal alſo Angle ABC Angle BAC Bafe Baſe becauſe bifected Center Circle ABCD Circumference Cofine Cone confequently Coroll Cylinder defcribed demonftrated Diameter Diſtance drawn thro EFGH equal Angles equiangular Equimultiples faid fame Altitude fame Multiple fame Plane fame Proportion fame Reaſon fecond fhall be equal fimilar fince firft firſt folid Parallelepipedon fome fore ftand fubtending given Right Line Gnomon greater join leffer lefs leſs likewife Logarithm Magnitudes Meaſure Number Parallelogram perpendicular Polygon Priſms Prop PROPOSITION Pyramid Pyramid ABCG Quadrant Ratio Rectangle Rectangle contained remaining Angle Right Angles Right Line AC Right-lined Figure Segment ſhall Sine Solid Sphere Subtangent themſelves THEOREM theſe thofe thoſe Triangle ABC Unity Vertex the Point Wherefore whofe Bafe whole whoſe Baſe
Popular passages
Page 66 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Page 163 - IF two triangles have one angle of the one equal to one angle of the other, and the sides about the equal angles proportionals : the triangles shall be equiangular, and shall have those angles equal which are opposite to the homologous sides.
Page 112 - And in like manner it may be shown that each of the angles KHG, HGM, GML is equal to the angle HKL or KLM ; therefore the five angles GHK, HKL, KLM, LMG, MGH...
Page 90 - IN a circle, the angle in a semicircle is a right angle ; but the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Page 22 - ... sides equal to them of the other. Let ABC, DEF be two triangles which have the two sides AB, AC equal to the two sides DE, DF, each to each, viz. AB...
Page 10 - ... equal to them, of the other. Let ABC, DEF be two triangles which have the two sides AB, AC equal to the two sides DE, DF, each to each, viz. AB equal to DE, and AC to DF ; but the base CB greater than the base EF ; the angle BAC is likewise greater than the angle EDF.
Page 15 - CF, and the triangle AEB to the triangle CEF, and the remaining angles to the remaining angles, each to each, to which...
Page 33 - ... therefore their other sides are equal, each to each, and the third angle of the one to the third angle of the other, (i.
Page 113 - If two right-angled triangles have their hypotenuses equal, and one side of the one equal to one side of the other, the triangles are congruent.