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" When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at... "
Appletons' Cyclopædia of Drawing: Designed as a Text-book for the Mechanic ... - Page 6
edited by - 1857 - 410 pages
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The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - Trigonometry - 1762 - 488 pages
...line. A Book I. 'A B CE ' NB When feveral angles are at one point B, any one of them is ' exprefled by three letters, of which the letter that is at the...' of the angle, that is at the point in which the ftraight lines that ' contain the angle meet one another, is put between the other two ' letters, and...
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Instructions Given in the Drawing School Established by the Dublin Society ...

Joseph Fenn - Mathematics - 1769 - 536 pages
...lines to one another. Fig. 6. NB Wben ffveral anglei are at one print B, any one of tier» it fxpr?ffed by three letters, of -which the letter that is at the vertex of the angle, fiat it at the point in vubicb the ßraigbt lines that contain the angle meet one another, it put between...
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The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - Trigonometry - 1775 - 534 pages
...line. « NB Book I. B CE ' NB When feveral angles are at one point B, any one ' of them is cxprefled by three letters, of which the letter that « is at...of the angle, that is, at the point in which ' the ftraight lines that contain the angle meet one another, is ' put between the other two letters, and...
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The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 552 pages
...line. NB Book I. A! D CE * NB When fevcral angles are at one point B, any one of them is exprefled by three letters* of which the letter that is at the...of the "angle, that is, at the point in which the ftraight lines that contain the angle meet one another, is put between the other two letters, and one...
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Elements of Geometry;: Containing the First Six Books of Euclid, with Two ...

Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...line. „. ; Vf{ t». -li NB ' When feveral angles. are at crie point B, any one ' of them is exprefled by three letters, of which the letter ' that is at...of the angle, that is, at the point in ' which the ftraight lines that contain the angle m6et dhe an' other, is put between the other two letters, and...
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The Elements of Euclid: Viz. the First Six Books, with the Eleventh and ...

Alexander Ingram - Trigonometry - 1799 - 374 pages
...ftraight line. B NB BooK T. ' NB When feveral angles are at one point B, any one * of them is expreffed by three letters, of which the letter that ' is at...of the angle, that is, at the point in which * the ftraight lines that contain the angle meet one another, is ' put between the other two letters, and...
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Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Mathematics - 1806 - 320 pages
...two straight lines to one another, which meet together, but are not in the same straight line. A NB ' When several angles are at one point B, any one '...the straight lines that contain the angle meet one an' other, is put between the other two letters, and one of these ' two is somewhere upon one of those...
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The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid, Robert Simson - Geometry - 1821 - 514 pages
...one another, which meet together, but are not in the same straight line, 4 * See Notes. AD BCE NB ' When several angles are at one point B, any one of...expressed by three letters, of which the letter that is 1 at the vertex of the angle, that is, at the point in which the * straight lines that contain the...
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Elements of Geometry: Being Chiefly a Selection from Playfair's Geometry

John Playfair - Geometry - 1829 - 210 pages
...opening. Thus, the angle ABC is greater than the angle DBG. ED. ELEMENTS OT GEOMETRY. BOOK I. A D 17 fi C When several angles are at one point B, any one of...is expressed by three letters, of which the letter at the vertex of the angle is put between the other two letters, and one of these two is somewhere...
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Geometry Without Axioms; Or the First Book of Euclid's Elements. With ...

Thomas Perronet Thompson - Euclid's Elements - 1833 - 168 pages
...circuitous; and the other where the radius vectus goes by the nearest road, direct. When several direct angles are at one point B, any one of them is expressed...at the vertex of the angle, [that is, at the point from which the straight lines that make the angle, proceed], is put in the middle, and one of the remaining...
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