The Element of Geometry |
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A straight line may be supposed to be drawn from any point , in any direction , and to any distance . XVI . If a line that is not straight between two points be straightened , part of the line will be drawn beyond one of the points ...
A straight line may be supposed to be drawn from any point , in any direction , and to any distance . XVI . If a line that is not straight between two points be straightened , part of the line will be drawn beyond one of the points ...
Seite 6
A straight line may be supposed to be drawn from any point , in any direction , and to any distance . XVI . If a line that is not straight between two points be straightened , part of the line will be drawn beyond one of the points ...
A straight line may be supposed to be drawn from any point , in any direction , and to any distance . XVI . If a line that is not straight between two points be straightened , part of the line will be drawn beyond one of the points ...
Seite 11
B If from two points in two straight lines , two other straight lines be drawn , the sum of the angles made by one of the lines is equal to the sum of the angles made by the other From the points C and G in the straight lines AB and EF ...
B If from two points in two straight lines , two other straight lines be drawn , the sum of the angles made by one of the lines is equal to the sum of the angles made by the other From the points C and G in the straight lines AB and EF ...
Seite 16
To draw a straight line at right angles to a given straight line , from a given point in the same . Let AB be the given straight line , and C the given point in it ; it is required to draw a straight line from C , at right angles to AB ...
To draw a straight line at right angles to a given straight line , from a given point in the same . Let AB be the given straight line , and C the given point in it ; it is required to draw a straight line from C , at right angles to AB ...
Seite 17
Wherefore , from the given point C , in the given straight line AB , CF has been drawn at right angles to AB . Which was to be done . PROP . X. PROB . a > To draw a straight line perpendicular to a given straight line of an unlimited ...
Wherefore , from the given point C , in the given straight line AB , CF has been drawn at right angles to AB . Which was to be done . PROP . X. PROB . a > To draw a straight line perpendicular to a given straight line of an unlimited ...
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The Element of Geometry (Classic Reprint) Formerly Chairman Department of Immunology John Playfair,John Playfair Keine Leseprobe verfügbar - 2017 |
Häufige Begriffe und Wortgruppen
AC is equal angle ABC angle ACB angle BAC angled triangle angles equal base bisect called centre circle circle ABCD circumference coincide common described diameter difference direction distance divided double draw drawn equal angles equiangular equivalent extremity fall figure fore four given straight line greater half join length less Let ABC likewise mean meet parallel parallelogram pass perpendicular plane polygon produced PROP proportional proved Q. E. D. PROP quantities radius ratio reason rectangle contained rectilineal figure remaining angle right angles segment side AC sides similar sine space square of AC tangent THEOR third triangle ABC twice the rectangle wherefore whole
Beliebte Passagen
Seite 25 - If a straight line be divided into two equal parts, and also into two unequal parts, the rectangle contained by the unequal parts, together with the square on the line between the points of section, is equal to the square on half the line.
Seite 13 - To draw a straight line through a given point parallel to a given straight line. Let A be the given point, and BC the given straight line ; it is required to draw a straight line E iR.
Seite 4 - To draw a straight line at right angles to a given straight line, from a given point in the same.
Seite 29 - In obtuse-angled triangles, if a perpendicular be drawn from either of the acute angles to the opposite side produced, the square on the side subtending the obtuse angle is greater than the squares on the sides containing the obtuse angle, by twice the rectangle contained by the side...
Seite 90 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Seite 87 - ... magnitudes there be taken more than its half, and from the remainder more than its half, and so on, there shall at length remain a magnitude less than the least of the proposed magnitudes.
Seite 1 - If two triangles have two sides of the one equal to two sides of the...
Seite 13 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of every triangle are together equal to two right angles.
Seite 64 - 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.
Seite 19 - If a straight line meet two straight lines, so as to make the two interior angles on the same side of it taken together less than two right angles...
Bibliografische Informationen
| Titel | The Element of Geometry |
| Autor/in | John Playfair |
| Verlag | W.E. Dean, 1836 |
| Original von | New York Public Library |
| Digitalisiert | 21. Juni 2006 |
| Länge | 114 Seiten |
| Zitat exportieren | BiBTeX EndNote RefMan |