Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement of the Quadrature of the Circle and the Geometry of Solids |
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Side 7
Magnitudes which coincide with one another , that is , which exactly fill the same
space , are equal to one another . IX . The whole is greater than its part . X. All
right angles are equal to one another . “ Two straight lines , which intersect one ...
Magnitudes which coincide with one another , that is , which exactly fill the same
space , are equal to one another . IX . The whole is greater than its part . X. All
right angles are equal to one another . “ Two straight lines , which intersect one ...
Side 49
The sign + placed between the names of two magnitudes , signifies that those
magnitudes are to be added together ; " and the sign --- placed between them ,
signifies that the latter is to be taken away from the former . ” “ The sign = signifies
...
The sign + placed between the names of two magnitudes , signifies that those
magnitudes are to be added together ; " and the sign --- placed between them ,
signifies that the latter is to be taken away from the former . ” “ The sign = signifies
...
Side 129
ELEMENTS OF GEOMETRY . BOOK V. " IN the demonstrations of this book there
are certain Book V. signs or characters which it has been found convenient to
employ . 1. The letters A , B , C , & c . are used to denote magnitudes of any kind .
ELEMENTS OF GEOMETRY . BOOK V. " IN the demonstrations of this book there
are certain Book V. signs or characters which it has been found convenient to
employ . 1. The letters A , B , C , & c . are used to denote magnitudes of any kind .
Side 130
Book V. it signifies that the magnitude is multiplied by the number . Thus , 3A
signifies three times A ; mB , m times B , or a multiple of B by m . When the
number is intended to multiply two or more magnitudes that follow , it is written
thus , m.A + ...
Book V. it signifies that the magnitude is multiplied by the number . Thus , 3A
signifies three times A ; mB , m times B , or a multiple of B by m . When the
number is intended to multiply two or more magnitudes that follow , it is written
thus , m.A + ...
Side 131
Magnitudes are said to be of the same kind , when the less can be multiplied so
as to exceed the greater ; and it is only such magnitudes that are said to have a
ratio to one another . V. If there be four magnitudes , and if any equimultiples
what ...
Magnitudes are said to be of the same kind , when the less can be multiplied so
as to exceed the greater ; and it is only such magnitudes that are said to have a
ratio to one another . V. If there be four magnitudes , and if any equimultiples
what ...
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Vanlige uttrykk og setninger
ABC is equal ABCD altitude angle ABC angle ACB angle BAC arch base bisected Book centre circle circle ABC circumference coincide common compounded contained cylinder definition demonstrated described diameter difference divided double draw drawn equal equal angles equiangular equilateral equimultiples exterior angle extremities fall figure fore fourth given straight line greater half inscribed interior join less Let ABC magnitudes manner meet multiple opposite parallel parallelogram pass perpendicular plane polygon prism PROB produced proportional proposition proved pyramid Q. E. D. PROP ratio reason rectangle contained rectilineal figure right angles segment shown sides similar solid space square taken THEOR third triangle ABC wherefore whole
Populære avsnitt
Side 121 - 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 42 - 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 63 - Therefore, in obtuse-angled triangles, &c. QED PROP. XIII. THEOREM. In every triangle, the square of the side subtending either of the acute angles is less than the squares of the sides containing that angle, by twice the rectangle contained by either of these sides, and the straight line intercepted between the perpendicular let fall upon it from the opposite angle, and the acute angle.
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 183 - Equiangular parallelograms have to one another the ratio which is compounded of the ratios of their sides. Let AC, CF be equiangular parallelograms having the angle BCD equal to the angle ECG ; the ratio of the parallelogram AC to the parallelogram CF is the same with the ratio which is compounded •f the ratios of their sides.
Side 3 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Side 291 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 160 - ... extremities of the base shall have the same ratio which the other sides of the triangle have to one...
Side 10 - ... shall be greater than the base of the other. Let ABC, DEF be two triangles, which have the two sides AB, AC, equal to the two DE, DF, each to each, viz.
Side 14 - Therefore, upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of the base equal to one another, and likewise those which are terminated in the other extretnity equal to one another.
Bibliografisk informasjon
| Tittel | Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement of the Quadrature of the Circle and the Geometry of Solids |
| Forfatter | John Playfair |
| Utgiver | F. Nichols, 1806 |
| Original fra | University of Michigan |
| Digitalisert | 16. feb 2008 |
| ISBN | 0608378402, 9780608378404 |
| Lengde | 311 sider |
| Eksporter sitat | BiBTeX EndNote RefMan |