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 31
Side 10
... 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 the angle DFE .. Therefore , if two tri- angles have two fides of the one equal to two fides of ...
... 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 the angle DFE .. Therefore , if two tri- angles have two fides of the one equal to two fides of ...
Side 11
... shall also be equal . Let ABC be an ifofceles triangle , of which the fide AB is equal to AC , and let the straight lines AB , AC be produced to D and E , the angle ABC fhall be equal to the angle ACB , and the angle CBD to the angle ...
... shall also be equal . Let ABC be an ifofceles triangle , of which the fide AB is equal to AC , and let the straight lines AB , AC be produced to D and E , the angle ABC fhall be equal to the angle ACB , and the angle CBD to the angle ...
Side 17
... shall be equal to the angle contained by the two fides of the other , Let ABC , DEF be two triangles having the two fides AB , AC , equal to the two fides DE , DF , each to each , viz . AB to DF , and AC to DF ; and also the bafe BC ...
... shall be equal to the angle contained by the two fides of the other , Let ABC , DEF be two triangles having the two fides AB , AC , equal to the two fides DE , DF , each to each , viz . AB to DF , and AC to DF ; and also the bafe BC ...
Side 19
... shall be equal to the angle DEB , and CEB to AED . For the angles CEA , C AED , which the straight line AE makes with the ftraight line CD , are to- A- gether equal a to two right angles and the angles AED , DEB , which the ftraight ...
... shall be equal to the angle DEB , and CEB to AED . For the angles CEA , C AED , which the straight line AE makes with the ftraight line CD , are to- A- gether equal a to two right angles and the angles AED , DEB , which the ftraight ...
Side 36
... shall be equal to the parallelogram EBCF . If the fides AD , DF of the A parallelograms ABCD , DBCF oppofite to the base . BC be ter- minated in the fame point D ; it is plain that each of the pa- a 34. I. rallelograms is double a of ...
... shall be equal to the parallelogram EBCF . If the fides AD , DF of the A parallelograms ABCD , DBCF oppofite to the base . BC be ter- minated in the fame point D ; it is plain that each of the pa- a 34. I. rallelograms is double a of ...
Andre utgaver - Vis alle
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...