| Proclus - Mathematics - 1992 - 432 pages
...primacy over the things that are plural and separated. X-XII. When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is a right angle and the straight line standing on the other is called a perpendicular... | |
| Saul Stahl - Geometry, Non-Euclidean - 1993 - 320 pages
...that Euclid felt the need to acknowledge their efforts. 10. When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is right, and the straight line standing on the other is called a perpendicular to that... | |
| Keith Devlin - Mathematics - 1996 - 228 pages
...lies evenly with the points on itself. Definition 10 When a straight line standing on another straight **line makes the adjacent angles equal to one another, each of the** equal angles is right and the straight line standing on the other is called a perpendicular to that... | |
| Howard Whitley Eves - Mathematics - 1997 - 370 pages
...straight lines, the angle is called a rectilinear angle. 10. When a straight line erected on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is called a right angle, and the straight line standing on the other is called a perpendicular... | |
| David A. Singer - Mathematics - 1998 - 176 pages
...know about right angles. Euclid's tenth definition says: When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is right, and the straight line standing on the other is called a perpendicular to that... | |
| Nick Huggett - Philosophy - 1999 - 292 pages
...angle are straight, the angle is called rectilineal. 10. When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is right, and the straight line standing on the other is called a perpendicular to that... | |
| Reinhard Laubenbacher, David Pengelley - Mathematics - 2000 - 292 pages
...postulate itself. Euclid, from Elements BOOK I. DEFINITION 10. When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is right, and the straight line standing on the other is called a perpendicular to that... | |
| Judith Cederberg - Mathematics - 2004 - 472 pages
...angle are straight, the angle is called rectilineal. 10. When a straight line set up on a straight **line makes the adjacent angles equal to one another, each of the** equal angles is right, and Reprinted with permission of Cambridge University Press from The Thirteen... | |
| William P. Berlinghoff, Kerry E. Grant, Dale Skrien - Mathematics - 2001 - 672 pages
...familiar figures in more or less familiar ways. For example: « When a straight line crossing a straight **line makes the adjacent angles equal to one another, each of the** equal angles is called a right angle, and the straight line crossing the other is called a perpendicular... | |
| R. H. Warn, John G. Horner - Crafts & Hobbies - 2002 - 292 pages
...straight liue, B, makes the adjacent angles equal to one another, each of B Fig. 1. Fig. 2. the angles Ls **called a right angle, and the straight line which...stands on the other is called a perpendicular to it** (Fig. 2). 8. An obtuse angle is that which is greater than a right angle (Fig. 3). 9- An acute angle... | |
| |