Cerca Imatges Maps YouTube Notícies Gmail Drive Calendar Més »
Inicia la sessió
 Llibres Llibres If four straight lines be proportionals, the rectangle contained by the extremes is equal to the rectangle contained by the means; And if the rectangle contained by the extremes be equal to the rectangle contained by the means, the four straight lines... Elements of Geometry: Containing the First Six Books of Euclid, with a ... - Pàgina 133
per John Playfair - 1846 - 317 pàgines
Visualització completa - Sobre aquest llibre ## The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - 1882 - 266 pàgines
...— If four straight lines be proportional, the redangle of the extremes is equal to the rectangle of the means ; and if the rectangle contained by the...equal to the rectangle contained by the means, the Jour straight lines are proportional. . Let A, B, C, D be four straight lines, so that A : B : : C...
Visualització completa - Sobre aquest llibre ## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1883 - 400 pàgines
...lines be proportionals, the rectangle contained by the extremes is equal to the rectangle contained by the means; and if the rectangle contained by the extremes...be equal to the rectangle contained by the means, tftefuur straight lines are proportionals. Let the four straight lines AB, CD, E, F, be proportionals,...
Visualització completa - Sobre aquest llibre ## Syllabus of plane geometry, books 1-3, corresponding to Euclid, books 1-4 ...

Mathematical association - 1883
...the. rectangle contained by the means; and, conversely, if the rectangle contained by the extremes is equal to the rectangle contained by the means the four straight lines are proportional. COR. If three straight lines are proportional the rectangle contained by the extremes...
Visualització completa - Sobre aquest llibre ## Elements of geometry, containing books i. to vi.and portions of books xi ...

Euclides, James Hamblin Smith - 1883
...the quadrilateral AEBC. And Conversely, If the rectangle contained by the extremes be equal to tbe rectangle contained by the means, the four straight lines are proportionals. Let rect. AB, GJT=rect. CD, EF. Then mwt AB be to CD as EF is to GH. For, the same construction being made,...
Visualització completa - Sobre aquest llibre ## The Elements of Euclid, books i. to vi., with deductions, appendices and ...

Euclides - 1884
...the rectangle contained by the extremes is equal to the rectangle contained by the means. Conversely: If the rectangle contained by the extremes be equal...contained by the means, the four straight lines are proportional. BG •H c(1) Let AB:CD = EF: GH: it is required to prove AB . GH = CD . EF. From A draw...
Visualització completa - Sobre aquest llibre ## Cambridge University Examination Papers

University of Cambridge - 1884
...lines be proportionals, the rectangle contained by the extremes is equal to the square on the mean; and if the rectangle contained by the extremes be equal to the square on the mean, the three straight lines are proportionals. _ J TUESDAY, June 3, 1884. 9— Щ....
Visualització completa - Sobre aquest llibre ## The Elements of Plane Geometry:pPart I(corresponding to Euclid Books I.-II ...

...the rectangle contained by the means ; and, conversely, if the rectangle contained by the extremes is equal to the rectangle contained by the means the four straight lines are proportional. Let OA, OB, OC, OD be four straight lines, such that OA : OB : : OC : OD : then shall...
Visualització completa - Sobre aquest llibre ## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 pàgines
...rectangle contained by the extremes is equal to the rectangle contained by the means. (2) Conversely : — If the rectangle contained by the extremes be equal...means, the four straight lines are proportionals. (1) Let A, B, C, D be four st. lines, such that A : B :: C : D, then rect. A, D = rect. B, C. G rL-....
Visualització completa - Sobre aquest llibre ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1892 - 518 pàgines
...to the rectangle contained by the means: Conversely, if the rectangle contained by the extremes is equal to the rectangle contained by the means, the four straight lines are proportional. Let the st. lines AB, CD, EF, GH be proportional, so that AB : CD :: EF : GH. Then shall...
Visualització completa - Sobre aquest llibre ## Proceedings of the Edinburgh Mathematical Society, Volums 17-18

...rectangle contained by the extremes is equal to the rectangle contained by the means. Conversely : If the rectangle contained by the extremes be equal...contained by the means, the four straight lines are proportional. (1) Let the four straight t lines AB, AC, AD, AE be proportional, so that AB : AC = AD...
Visualització completa - Sobre aquest llibre