Elements of Geometry and Plane Trigonometry: With an Appendix, and Copious Notes and IllustrationsA. Constable & Company, 1817 - 432 Seiten |
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Seite 9
... , and is termed re - entrant . Thus the angle ABC is re - entrant , and the rest of the angles of the polygon ABCDEF are salient at A , C , D , E and F. E B F 32. A rectilineal figure having more than four sides , BOOK I.
... , and is termed re - entrant . Thus the angle ABC is re - entrant , and the rest of the angles of the polygon ABCDEF are salient at A , C , D , E and F. E B F 32. A rectilineal figure having more than four sides , BOOK I.
Seite 10
... polygon . 33. A circle is a figure described by the revolution of a straight line about one of its extremities : 34. The fixed point is called the centre of the circle , the describing line its radius , and the boundary traced by the ...
... polygon . 33. A circle is a figure described by the revolution of a straight line about one of its extremities : 34. The fixed point is called the centre of the circle , the describing line its radius , and the boundary traced by the ...
Seite 47
... polygon may , by successive steps , be reduced to a triangle ; for an exterior triangle is always exchanged for another equivalent one , which , attaching itself to either of the adjoining sides , coalesces with the rest of the figure ...
... polygon may , by successive steps , be reduced to a triangle ; for an exterior triangle is always exchanged for another equivalent one , which , attaching itself to either of the adjoining sides , coalesces with the rest of the figure ...
Seite 102
... Polygons are equilateral , when their sides , in the same order , are respectively equal : They are equiangular , if an equality obtains between their corresponding angles . 6. Polygons are said to be regular , when all their sides and ...
... Polygons are equilateral , when their sides , in the same order , are respectively equal : They are equiangular , if an equality obtains between their corresponding angles . 6. Polygons are said to be regular , when all their sides and ...
Seite 110
... this . And , by thus changing the elementary tri- angle , a regular polygon may be always described , with twice the number of sides . PROP . X. PROB . In a given triangle , 110 ELEMENTS OF GEOMETRY . PROP. IX. PROB. ...
... this . And , by thus changing the elementary tri- angle , a regular polygon may be always described , with twice the number of sides . PROP . X. PROB . In a given triangle , 110 ELEMENTS OF GEOMETRY . PROP. IX. PROB. ...
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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