The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago Vitiated These Books, are Corrected and Some of Euclid's Demonstrations are Restored. Also, to this Second Edition is Added the Book of Euclid's Data. In Like Manner Corrected. viz. the first six books, together with the eleventh and twelfthR. and A. Foulis, 1762 - 466 pàgines |
Des de l'interior del llibre
Resultats 1 - 5 de 18.
Pàgina 189
... Cone is a folid figure defcribed by the revolution of a right angled triangle about one of the fides containing the right angle , which fide remains fixed . If the fixed fide be equal to the other fide containing the right angle , the ...
... Cone is a folid figure defcribed by the revolution of a right angled triangle about one of the fides containing the right angle , which fide remains fixed . If the fixed fide be equal to the other fide containing the right angle , the ...
Pàgina 190
... Cone is called a right angled Cone ; if it be less than the other fide , an obtufe angled , and if greater , an acute angled Cone . XIX . The axis of a Cone is the fixed ftraight line about which the tri- angle revolves . XX . The base ...
... Cone is called a right angled Cone ; if it be less than the other fide , an obtufe angled , and if greater , an acute angled Cone . XIX . The axis of a Cone is the fixed ftraight line about which the tri- angle revolves . XX . The base ...
Pàgina 261
... cone is the third part of a cylinder which has the fame bafe , and is of an equal altitude with it . Let a cone have the fame bafe with a cylinder , viz . the circ'e ABCD , and the fame altitude . the cone is the third part of the cy ...
... cone is the third part of a cylinder which has the fame bafe , and is of an equal altitude with it . Let a cone have the fame bafe with a cylinder , viz . the circ'e ABCD , and the fame altitude . the cone is the third part of the cy ...
Pàgina 262
... above the triple of the cone . let them be those upon the fgments of the circle AE , EB , BF , FC , CG , GD , DH , HA . there- As was flown in l'rop . 2. of this Book . fore E A H D G 7.12 . fore the rest 262 ELEMENTS THE.
... above the triple of the cone . let them be those upon the fgments of the circle AE , EB , BF , FC , CG , GD , DH , HA . there- As was flown in l'rop . 2. of this Book . fore E A H D G 7.12 . fore the rest 262 ELEMENTS THE.
Pàgina 263
... cone , of which the bafe is the circle ABCD . but it is alfo lefs , for the pyramid is contained within the cone ; which is impoffible . Nor can the cylinder be lefs than the triple of the cone . let it be lefs if poffible . therefore ...
... cone , of which the bafe is the circle ABCD . but it is alfo lefs , for the pyramid is contained within the cone ; which is impoffible . Nor can the cylinder be lefs than the triple of the cone . let it be lefs if poffible . therefore ...
Altres edicions - Mostra-ho tot
The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ... Robert Simson Visualització completa - 1775 |
The Elements of Euclid: The Errors by which Theon, Or Others, Have Long ... Robert Simson Visualització completa - 1827 |
The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ... Robert Simson Visualització completa - 1781 |
Frases i termes més freqüents
alfo alſo angle ABC angle BAC bafe baſe BC is equal BC is given becauſe the angle becauſe the ratio bifected Book XI cafe circle ABCD circumference cone confequently conftruction cylinder defcribed demonftrated drawn equal angles equiangular equimultiples Euclid excefs faid fame multiple fame ratio fame reaſon fecond fegment fhall fhewn fides fimilar firft firſt folid angle fome fore fquare of BC given angle given in fpecies given in magnitude given in pofition given magnitude given ratio given ſtraight line gnomon greater join lefs leſs Let ABC likewife line BC muſt oppofite parallel parallelepipeds parallelogram perpendicular polygon prifms Propofition proportionals pyramid Q. E. D. PROP reafon rectangle rectangle contained rectilineal figure right angles ſhall ſphere ſquare ſtraight line AB thefe THEOR theſe thro tiple triangle ABC wherefore
Passatges populars
Pàgina 5 - Let it be granted that a straight line may be drawn from any one point to any other point.
Pàgina 163 - 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.
Pàgina 48 - If a straight line be divided into any two parts, the squares of the whole line, and of one of the parts, are equal to twice the rectangle contained by the whole and that part, together with the square of the other part. Let the straight line AB be divided into any two parts in the point C; the squares of AB, BC are equal to twice the rectangle AB, BC, together with the square of AC.
Pàgina 73 - The straight line drawn at right angles to the diameter of a circle, from the extremity of it, falls without the circle; and no straight line can be drawn from the extremity between that straight line and the circumference, so as not to cut the circle...
Pàgina 105 - 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. either the sides adjacent to the equal...
Pàgina 3 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Pàgina 167 - Similar triangles are to one another in the duplicate ratio of their homologous sides.
Pàgina 54 - AB be the given straight line ; it is required to divide it into two parts, so that the rectangle contained by the whole, and one of the parts, shall be equal to the square of the other part.
Pàgina 47 - If a straight line be divided into two equal parts, and also into two unequal parts; the rectangle contained by the unequal parts, together with the square of the line between the points of section, is equal to the square of half the line.
Pàgina 37 - To describe a parallelogram that shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle.