Elements of Geometry;: Containing the First Six Books of Euclid, with Two Books on the Geometry of Solids. To which are Added, Elements of Plane and Spherical TrigonometryBell & Bradfute, and G. G. & J. Robinson, London., 1795 - 400 sider |
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Resultat 1-5 av 32
Side 49
... faid to tain one of the right angles . ) II . A E Ꭰ . In every parallelogram , any of the parallelograms about a diameter , together with the two complements , is cal- led a Gnomon . Thus ' the parallelogram HG , together with the com ...
... faid to tain one of the right angles . ) II . A E Ꭰ . In every parallelogram , any of the parallelograms about a diameter , together with the two complements , is cal- led a Gnomon . Thus ' the parallelogram HG , together with the com ...
Side 51
... faid part . Let the straight line AB be divided into two parts in the point C ; the rectangle AB , BC is equal to the rectangle AC , CB , together with the fquare of BC . Upon BC defcribe a the fquare CDEB , and produce A ED to F , and ...
... faid part . Let the straight line AB be divided into two parts in the point C ; the rectangle AB , BC is equal to the rectangle AC , CB , together with the fquare of BC . Upon BC defcribe a the fquare CDEB , and produce A ED to F , and ...
Side 69
... faid to touch a circle , when it meets the circle , and be- ing produced does not cut it . II . Circles are faid to touch one another , which meet , but do not cut one another . III . Sraight lines are faid to be equally di- ftant from ...
... faid to touch a circle , when it meets the circle , and be- ing produced does not cut it . II . Circles are faid to touch one another , which meet , but do not cut one another . III . Sraight lines are faid to be equally di- ftant from ...
Side 83
... faid to be equally distant from the centre , when the perpendiculars drawn to them from the centre are equal c : Therefore AB , CD are equally diftante 3. Def . 3 . from the centre . Next , if the straight lines AB , CD be equally ...
... faid to be equally distant from the centre , when the perpendiculars drawn to them from the centre are equal c : Therefore AB , CD are equally diftante 3. Def . 3 . from the centre . Next , if the straight lines AB , CD be equally ...
Side 109
... faid to be infcribed in another Book IV . rectilineal figure , when all the angles of the infcribed figure are upon the fides of the figure in which it is infcribed , each upon each . II . In like manner , a figure is faid to be de ...
... faid to be infcribed in another Book IV . rectilineal figure , when all the angles of the infcribed figure are upon the fides of the figure in which it is infcribed , each upon each . II . In like manner , a figure is faid to be de ...
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Elements of Geometry;: Containing the First Six Books of Euclid, with Two ... Euclid,John Playfair Uten tilgangsbegrensning - 1795 |
Elements of Geometry: Containing the First Six Books of Euclid, with a ... Formerly Chairman Department of Immunology John Playfair Ingen forhåndsvisning tilgjengelig - 2015 |
Elements of Geometry: Containing the First Six Books of Euclid, With Two ... Formerly Chairman Department of Immunology John Playfair,John Playfair Ingen forhåndsvisning tilgjengelig - 2017 |
Vanlige uttrykk og setninger
ABCD adjacent angles alfo alfo equal alſo angle ABC angle ACB angle BAC arch bafe baſe BC is equal becauſe the angle bifected Book VII cafe centre circle ABC circumference co-fine defcribed demonftrated diameter draw drawn equal angles equiangular equilateral equilateral polygon equimultiples Euclid exterior angle faid fame manner fame ratio fame reaſon fecond fection fegment femicircle fhewn fimilar fince firft firſt folid fore fquare of AC ftraight line AB fuch given ſtraight line greater impoffible infcribed interfection join lefs leſs Let ABC line BC magnitudes muſt oppofite angle parallel parallelepiped parallelogram perpendicular polygon prifm propofition proportionals radius rectangle contained rectilineal figure remaining angle right angles ſpace ſpherical triangle ſquare tangent thefe THEOR theſe thoſe touches the circle triangle ABC wherefore
Populære avsnitt
Side 18 - 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...
Side 155 - 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 17 - If, at a point in a straight line, two other straight lines upon the opposite sides of it, make the adjacent angles, together equal to two right angles, these two straight lines shall be in one and the same straight line.
Side 9 - Wherefore, from the given point A, a straight line AL has been drawn equal to the given straight line BC.
Side 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.
Side 23 - 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.
Side 12 - ABC: and it has also been proved that the angle FBC is equal to the angle GCB, which are the angles upon the other side of the base. Therefore the angles at the base, &c.
Side 6 - Let it be granted that a straight line may be drawn from any one point to any other point.
Side 156 - But by the hypothesis, it is less than a right angle ; which is absurd. Therefore the angles ABC, DEF are not unequal, that is, they are equal : And the angle at A is equal to the angle at D ; wherefore...
Side 44 - If a straight line be bisected, and produced to any point ; the rectangle contained by the whole line thus produced, and the part of it produced...