Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle, and the Geometry of Solids : to which are Added, Elements of Plane and Spherical TrigonometryMarot & Walter, 1826 - 320 sider |
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Resultat 1-5 av 35
Side 16
... triangle , is that which has an obtuse angle , XXIV . An acute angled triangle , is that which has three acute angles . XXV . Of four sided figures , a square is that which has all its sides equal , and all its angles right angles ...
... triangle , is that which has an obtuse angle , XXIV . An acute angled triangle , is that which has three acute angles . XXV . Of four sided figures , a square is that which has all its sides equal , and all its angles right angles ...
Side 27
... right angles ; and the angles AED , DEB , which the straight line DE makes with the straight line AB , are also ... four right angles . " COR . 2. And hence , all the angles made by any number of straight lines meeting in one point , are ...
... right angles ; and the angles AED , DEB , which the straight line DE makes with the straight line AB , are also ... four right angles . " COR . 2. And hence , all the angles made by any number of straight lines meeting in one point , are ...
Side 36
... angles BGH , GHD upon the same side are together equal to two right angles . K E G L -B For if AGH be not equal to ... four angles KGH , HGL , CHG , GHD are together equal to four right angles ( 13. 1. ) of which the two , KGH , CHG are ...
... angles BGH , GHD upon the same side are together equal to two right angles . K E G L -B For if AGH be not equal to ... four angles KGH , HGL , CHG , GHD are together equal to four right angles ( 13. 1. ) of which the two , KGH , CHG are ...
Side 38
... four right angles . E D For any rectilineal figure ABCDE can be divided into as many tri- angles as the figure has sides , by drawing straight lines from a point ... right angles . PROP . XXXIII . THEOR . The straight lines which 38 ELEMENTS.
... four right angles . E D For any rectilineal figure ABCDE can be divided into as many tri- angles as the figure has sides , by drawing straight lines from a point ... right angles . PROP . XXXIII . THEOR . The straight lines which 38 ELEMENTS.
Side 47
... four straight lines BA , AD , DE , EB are equal to one another , and th parallelogram ADEB is equilateral ;, it is likewise rectangular ; for the straight D line AD meeting the parallels , AB . DE , makes the angles ... right angles ; but BAD ...
... four straight lines BA , AD , DE , EB are equal to one another , and th parallelogram ADEB is equilateral ;, it is likewise rectangular ; for the straight D line AD meeting the parallels , AB . DE , makes the angles ... right angles ; but BAD ...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ... Euclid,John Playfair Uten tilgangsbegrensning - 1826 |
Elements of Geometry: Containing the First Six Books of Euclid; With Two ... Formerly Chairman Department of Immunology John Playfair Ingen forhåndsvisning tilgjengelig - 2016 |
Vanlige uttrykk og setninger
ABC is equal ABCD adjacent angles altitude angle ABC angle ACB angle BAC angle EDF arch AC base BC bisected centre circle ABC circumference cosine cylinder demonstrated diameter draw equal and similar equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle fore four right angles given straight line greater hypotenuse inscribed join less Let ABC Let the straight line BC meet multiple opposite angle parallel parallelogram perpendicular polygon prism PROB produced proportionals proposition Q. E. D. COR Q. E. D. PROP radius ratio rectangle contained rectilineal figure remaining angle segment semicircle side BC sine solid angle solid parallelopipeds spherical angle spherical triangle straight line AC THEOR third touches the circle triangle ABC triangle DEF wherefore
Populære avsnitt
Side 125 - 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.
Side 39 - THE straight lines which join the extremities of two equal and parallel straight lines, towards the same parts, are also themselves equal and parallel. Let AB, CD be equal and parallel straight lines, and joined towards the same parts by the straight lines AC, BD ; AC, BD are also equal and parallel.
Side 41 - Parallelograms upon the same base and between the same parallels, are equal to one another.
Side 19 - BG; and things that are equal to the same are equal to one another; therefore the straight line AL is equal to BC. Wherefore from the given point A a straight line AL has been drawn equal to the given straight line BC.
Side 145 - If two triangles which have two sides of the one proportional to two sides of the other, be joined at one angle, so as to have their homologous sides parallel to one another ; the remaining sides shall be in a straight line. Let ABC, DCE be two triangles which have the two sides BA, AC proportional to the two CD, DE, viz.
Side 30 - If, from the ends of the side of a triangle, there be drawn two straight lines to a point within the triangle, these shall be less than, the other two sides of the triangle, but shall contain a greater angle.
Side 136 - FGL, have an angle in one equal to an angle in the other, and their sides about these equal angles proportionals ; the triangle ABE is equiangular (6.
Side 51 - If a straight line be divided into any two parts, the square of the whole line is equal to the squares of the two parts, together with twice the rectangle contained by the parts.
Side 20 - DEF, and be equal to it ; and the other angles of the one shall coincide with the remaining angles of the other and be equal to them, viz. the angle ABC to the angle DEF, and the angle ACB to DFE.
Side 55 - If a straight line be divided into two equal, and also into two unequal parts ; the squares on the two unequal parts are together double of the square on half the line, and of the square on the line between the points of section.