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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 the vertex of the angle, that is, at ' the point in which the straight lines that contain the ' angle meet one another, is put between...
The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ... - Page 10
by Robert Simson - 1775 - 520 pages
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## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - Euclid's Elements - 1842 - 332 pages
...same straight line. E B NB 'When several angles are at one point B, any one of them is ex' pressed by three letters, of which the letter that is at the vertex of the an' gle, that is, at the point in which the straight lines that contain the angle ' meet one another,...
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## Elements of geometry: consisting of the first four,and the sixth, books of ...

Euclides - 1842 - 316 pages
...several angles are at one point B, any one ' of them is expressed by three letters, of which the letter at ' the vertex of the angle, that ' is, at the point in which the ' straight lines containing the ' angle meet one another, is ' put between the two other ' letters...
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## A course of practical geometry for mechanics

William Pease - Geometry - 1843 - 80 pages
...the same straight line. NB ' When several angles are at one point B, any ' one of them is expressed by three letters, of which ' the letter that is at...of the angle, that is, at ' the point in which the straight lines that contain the ' angle meet one another, is put between the other two ' letters, and...
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## Euclid in Paragraphs: The Elements of Euclid: Containing the First Six Books ...

Euclid - Geometry - 1845 - 218 pages
...same straight line. BC NB ' When several angles are at one point B, any one ' of them is expressed by three letters, of which the letter ' that is at...of the angle, that is, at the point in ' which the straight lines that contain the angle meet one ' another, is put between the other two letters, and...
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## Euclid's Elements of geometry [book 1-6, 11,12] with explanatory notes ...

Euclides - 1845 - 546 pages
...the same straight line. D b C NB When several angles are at one point II, either of them is expressed by three letters, of which the letter that is at the...vertex of the angle, that is, at the point in which the right lines that contain the angle meet one another, is put between the other two letters, and one...
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## The Elements of Euclid, the parts read in the University of Cambridge [book ...

Euclides - 1846 - 292 pages
...in the same straight line. NB, When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at the...vertex of the angle, that is, at the point in which the straight lines that contain the angle meet one another, is put between the other two letters, and one...
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## The Elements of Geometry, Symbolically Arranged

Great Britain. Admiralty - Geometry - 1846 - 128 pages
...in the same straight line. NB When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at the...vertex of the angle, that is, at the point in which the straight 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 a ...

Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...same straight line. BC NB ' When several angles are at one point B, any one of them is ex' pressed by three letters, of which the letter that is at the vertex of the an' gle, that is, at the point in which the straight lines that contain the angle 'meet one another,...
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## The first three books of Euclid's Elements of geometry, with theorems and ...

Euclid, Thomas Tate - 1849 - 120 pages
...in the same straight line. NB "When several angles are at one point B, anyone of them is expressed by three letters, of which the letter that is at the...vertex of the angle, that is, at the point in which the straight lines that contain the angle meet one another, is put between the other two letters, and one...
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## A Manual of Surveying for India, Detailing the Mode of Operations on the ...

Sir Henry Edward Landor Thuillier - Surveying - 1851 - 826 pages
...angle, and EEC an obtuse angle. * When several angles are at one point B, any one of them is expressed by three letters, of which the letter that is at the vertex of the angle, that is, >f the point in which the straight lines that contain the angle meet one another, is put between the...
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