Books Books
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

## The first two books of the Elements of Euclid, with additional figures ...

Euclides - 1852 - 152 pages
...the same straight line. IX. 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...

## The synoptical Euclid; being the first four books of Euclid's Elements of ...

Euclides - 1853 - 146 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...

## The first six books of the Elements of Euclid, with numerous exercises

Euclides - Geometry - 1853 - 176 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 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...

## The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick

Royal Military Academy, Woolwich - Mathematics - 1853 - 400 pages
...angles are at one point B, any one of them is expressed by three letters, of which the letter •.hat 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 e E two letters, and...

## The Elements of geometry; or, The first six books, with the eleventh and ...

Euclides - 1855 - 270 pages
...them is called an angle. 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...

## Mensuration of Lines, Areas, Surfaces, and Volumes ...

Robert Rawson - 1856 - 178 pages
...angles are at one point B, any one of them is expressed by three letters, of which the letter that is at 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...

## APPLETONS' CYCLOPAEDIA OF DRAWING

W.E. WORTHEN - 1857 - 600 pages
...lines which meet one another. "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 : Thus...

## Appletons' Cyclopędia of Drawing: Designed as a Text-book for the Mechanic ...

William Ezra Worthen - Architectural drawing - 1857 - 632 pages
...lines which meet one another. " 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 : Thus...