The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago Vitiated These Books, are Corrected and Some of Euclid's Demonstrations are Restored. Also, The Book of Euclid's Data, in Like Manner Corrected. viz. The first six books, together with the eleventh and twelfthA. Foulis, 1781 - 466 sider |
Inni boken
Resultat 6-10 av 100
Side 5
... plane , and which being produced ever fo far both ways , do not meet . Book I. POSTULATES . I .. ET it be granted that a straight line may be drawn from any one point to any other point . LE II . That a terminated ftraight line may be ...
... plane , and which being produced ever fo far both ways , do not meet . Book I. POSTULATES . I .. ET it be granted that a straight line may be drawn from any one point to any other point . LE II . That a terminated ftraight line may be ...
Side 188
... plane , when it makes right angles with every ftraight line meeting it in that plane . IV . A plane is perpendicular to a plane , when the straight lines drawn in one of the planes perpendicularly to the common section of the two planes ...
... plane , when it makes right angles with every ftraight line meeting it in that plane . IV . A plane is perpendicular to a plane , when the straight lines drawn in one of the planes perpendicularly to the common section of the two planes ...
Side 189
... planes . XII . A Pyramid is a folid figure contained by planes that are conftituted betwixt one plane and one point above it in which they meet . XIII . A Prism is a folid figure contained by plane figures of which two that are oppofite ...
... planes . XII . A Pyramid is a folid figure contained by planes that are conftituted betwixt one plane and one point above it in which they meet . XIII . A Prism is a folid figure contained by plane figures of which two that are oppofite ...
Side 191
... plane , and the part BC above it . and fince the straight line AB is in the plane , it can be produced in that planc . let it be produced to D. and let any plane pafs thro ' the ftraight C line AD , and be turned about it until it pafs ...
... plane , and the part BC above it . and fince the straight line AB is in the plane , it can be produced in that planc . let it be produced to D. and let any plane pafs thro ' the ftraight C line AD , and be turned about it until it pafs ...
Side 192
... plane BC the straight B E line DFB . then two ftraight lines DEB , DFB have the fame extremities , and there- fore ... plane which paffes through them , that is , to the plane in which they are . Let the ftraight line EF ftand at right ...
... plane BC the straight B E line DFB . then two ftraight lines DEB , DFB have the fame extremities , and there- fore ... plane which paffes through them , that is , to the plane in which they are . Let the ftraight line EF ftand at right ...
Andre utgaver - Vis alle
The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ... Robert Simson Uten tilgangsbegrensning - 1775 |
The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ... Robert Simson Uten tilgangsbegrensning - 1762 |
The Elements of Euclid: The Errors by which Theon, Or Others, Have Long ... Robert Simson Uten tilgangsbegrensning - 1827 |
Vanlige uttrykk og setninger
AC is equal alfo alſo angle ABC angle BAC bafe baſe BC is given becauſe the angle bifected Book XI cafe circle ABCD circumference cone confequently cylinder defcribed demonftrated diameter drawn EFGH equal angles equiangular equimultiples Euclid excefs faid fame manner fame multiple fame ratio fecond fegment fhall fhewn fide BC fides fimilar fince firft firſt folid angle fome fore fquare of AC ftraight line AB given angle given ftraight line given in fpecies given in magnitude given in pofition given magnitude given ratio gnomon greater join lefs leſs likewife line BC muſt oppofite parallel parallelepipeds parallelogram perpendicular prifm Propofition proportionals pyramid rectangle contained rectilineal figure right angles ſhall ſphere ſquare thefe THEOR theſe thro tiple triangle ABC vertex wherefore
Populære avsnitt
Side 156 - 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 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 323 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides.
Side 92 - If from a point without a circle there be drawn two straight lines, one of which cuts the circle, and the other meets it ; if the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, be equal to the square- of the line which meets it, the line which meets shall touch the circle.
Side 80 - EA : and because AD is equal to DC, and DE common to the triangles ADE, CDE, the two sides AD, DE are equal to the two CD, DE, each to each ; and the angle ADE is equal to the angle CDE, for each of them is a right angle ; therefore the base AE is equal (4.
Side 52 - If a straight line be bisected, and produced to any point, the square of the whole line thus produced, and the square of the part of it produced, are together double of the square of half the line bisected, and of the square of the line made up of the half and the part produced.
Side 36 - To a given straight line to apply a parallelogram, which shall be equal to a given triangle, and have one of its angles equal to a given rectilineal angle.
Side 2 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it.
Side 54 - AB be the given straight line ; it is required to divide it into two parts, so that the rectangle contained by the whole, and one of the parts, shall be equal to the square of the other part.
Side 74 - The straight line drawn at right angles to the diameter of a circle, from the extremity of it, falls without the circle...