Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth BooksJ. Rivington, 1765 - 464 Seiten |
Im Buch
Ergebnisse 1-5 von 100
Seite x
... alfo added feveral propofitions to this edition , containing many valuable , useful , and ele- gant theorems and problems , which , with those of Euclid himself , do render the whole more compleat elements of common geometry and fome of ...
... alfo added feveral propofitions to this edition , containing many valuable , useful , and ele- gant theorems and problems , which , with those of Euclid himself , do render the whole more compleat elements of common geometry and fome of ...
Seite 12
... alfo it has been de- monftrated , that the angle F B C is equal to the angle G C B , and they are under the base . Therefore the angles at the bafe of ifofceles triangles are equal to one another , and the equal right lines being pro ...
... alfo it has been de- monftrated , that the angle F B C is equal to the angle G C B , and they are under the base . Therefore the angles at the bafe of ifofceles triangles are equal to one another , and the equal right lines being pro ...
Seite 14
... alfo equal bafes , then shall the angle contained by the equal fides of the one triangle , be equal to the angle contained by the equal fides of the other " . Let there be two triangles A B C , DEF , having the two fides A B , A C of ...
... alfo equal bafes , then shall the angle contained by the equal fides of the one triangle , be equal to the angle contained by the equal fides of the other " . Let there be two triangles A B C , DEF , having the two fides A B , A C of ...
Seite 23
... alfo the angles C A B , A B C. Therefore any two angles of every triangle taken toge- ther , are less than two right angles , Which was to be demonftrated . PROP . XVIII . THEOR . The greater angle of every triangle is opposite to the ...
... alfo the angles C A B , A B C. Therefore any two angles of every triangle taken toge- ther , are less than two right angles , Which was to be demonftrated . PROP . XVIII . THEOR . The greater angle of every triangle is opposite to the ...
Seite 26
... alfo A and c greater than B ; and B and c greater than A ; it is required to constitute a triangle , whofe three fides fhall be equal to A , B , C. Let a right line D E be put finite at D , but infinite to- wards E , and put [ by prop ...
... alfo A and c greater than B ; and B and c greater than A ; it is required to constitute a triangle , whofe three fides fhall be equal to A , B , C. Let a right line D E be put finite at D , but infinite to- wards E , and put [ by prop ...
Andere Ausgaben - Alle anzeigen
Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books Euclid,David Gregory Keine Leseprobe verfügbar - 2023 |
Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books Euclid,David Gregory Keine Leseprobe verfügbar - 2023 |
Euclid's Elements of Geometry: The First Six, the Eleventh and Twelfth Books Euclid,David Gregory Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
A B C D alfo alſo angle ABC becauſe the angle bifected centre circle A B C circumference cone confequent cylinder defcribed demonftrated diameter equal angles equiangular equimultiples Euclid EUCLID's ELEMENTS fame altitude fame multiple fame ratio fame reafon fecond fegment femidiameter fhall fides A B fimilar fince firft firſt fixth folid angle folid parallelepipedon fome fphere ftand given circle given right line given triangle greater infcribed interfect join leffer lefs leſs parallel parallelogram perpendicular polygon prifm PROP propofition proportional pyramid rectangle contained regular polygon remaining angle right angles right line A B right lined figure right-lined SCHOLIUM ſquare thefe THEOR theſe thofe thoſe trapezium triangle ABC twice the fquare vertex the point Wherefore whofe bafe whoſe baſe
Beliebte Passagen
Seite 247 - 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.
Seite 30 - 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...
Seite 248 - But it was proved that the angle AGB is equal to the angle at F ; therefore the angle at F is greater than a right angle : But by the hypothesis, it is less than a right angle ; which is absurd.
Seite 18 - When a straight line set up on a straight line makes the adjacent angles equal to one another, each of the equal angles is right, and the straight line standing on the other is called a perpendicular to that on which it stands.
Seite 32 - Let the straight line EF, which falls upon the two straight lines AB, CD, make the alternate angles AEF, EFD equal to one another; AB is parallel to CD.
Seite 56 - Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Seite 391 - KL: but the cylinder CM is equal to the cylinder EB, and the axis LN to the axis GH; therefore as the cylinder EB to...
Seite 110 - If any two points be taken in the circumference of a circle, the straight line which joins them shall fall within the circle.
Seite 130 - When you have proved that the three angles of every triangle are equal to two right angles...
Seite 183 - FK : in the same manner it may be demonstrated, that FL, FM, FG are each of them equal to FH, or FK : therefore the five straight lines FG, FH, FK, FL, FM are equal to one another : wherefore the circle described from the centre F, at the distance of...