Elements of Geometry and Plane Trigonometry: With an Appendix, and Copious Notes and IllustrationsA. Constable & Company, 1817 - 432 Seiten |
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Seite 5
... vertex . To abridge the reference , it is usual to denote an angle by tracing over its sides ; the letter at the ver- tex , which is common to them both , being placed in the middle . Thus , the angle con- tained by the straight lines ...
... vertex . To abridge the reference , it is usual to denote an angle by tracing over its sides ; the letter at the ver- tex , which is common to them both , being placed in the middle . Thus , the angle con- tained by the straight lines ...
Seite 8
... the opposite angular point its vertex . 22. A quadrilateral figure is contained by four straight lines . 23. Of quadrilateral figures , a trape- zoid ( 1 ) has two parallel sides : 24. A trapezium ( 2 ) has two of its ELEMENTS OF GEOMETRY .
... the opposite angular point its vertex . 22. A quadrilateral figure is contained by four straight lines . 23. Of quadrilateral figures , a trape- zoid ( 1 ) has two parallel sides : 24. A trapezium ( 2 ) has two of its ELEMENTS OF GEOMETRY .
Seite 13
... vertex of the triangle ACB must , therefore , ap- pear in a point which is common to both those circles , or , by the first proposition , in F the vertex of the triangle DFE . Consequently these two triangles , being rectilineal , must ...
... vertex of the triangle ACB must , therefore , ap- pear in a point which is common to both those circles , or , by the first proposition , in F the vertex of the triangle DFE . Consequently these two triangles , being rectilineal , must ...
Seite 15
... vertex B of the given angle with radii BC and BA equal to its sides , and the base AC being repeatedly inserted be- tween those circumferences ; a multi- tude of triangles will be thus formed , all of them equal to the original triangle ...
... vertex B of the given angle with radii BC and BA equal to its sides , and the base AC being repeatedly inserted be- tween those circumferences ; a multi- tude of triangles will be thus formed , all of them equal to the original triangle ...
Seite 17
... vertex of the triangle , is perpendicular to AC . Schol . In the general construction , the isosceles triangle DFE may stand either below or above the base DE ; but if it were made equal to DBE , the vertex F would coin- cide with B ...
... vertex of the triangle , is perpendicular to AC . Schol . In the general construction , the isosceles triangle DFE may stand either below or above the base DE ; but if it were made equal to DBE , the vertex F would coin- cide with B ...
Inhalt
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Elements of Geometry, and Plane Trigonometry: With an Appendix, and Very ... University Professor Emeritus John Leslie, Sir Keine Leseprobe verfügbar - 2016 |
Häufige Begriffe und Wortgruppen
ABCD adjacent angle altitude angle ABC angle ADB angle BAC base AC bisect centre chord circle circumference consequently construction contained angle cosine decagon denote describe diameter difference distance diverging lines divided draw equal to BC equilateral triangle equivalent to twice evidently exterior angle given greater half Hence hypotenuse inscribed isosceles triangle join let fall likewise measure parallel perpendicular point G polygon PROB PROP Proposition quadrilateral figure quantities radius ratio rectangle rectangle contained rectilineal figure rhomboid right angles right-angled triangle Scholium segments semicircle semiperimeter sequently side AC sinB sine square of AB square of AC straight line tangent THEOR tion triangle ABC twice the rectangle twice the square vertex vertical angle whence Wherefore