| John Playfair - 1846 - 317 páginas
...equal (8. 1.) to the angle CHG ; and they are adjacent angles ; now when a straight line standing on a **straight line makes the adjacent angles equal to one another, each of** them is a right angle, and the straight line which stands upon the other is called a perpendicular... | |
| Euclides - 1847
...of the lines, by the meeting of which they are formed. See the Observation after Definition 18. 10. **When a straight line, standing on another straight line, makes the adjacent** an. gles equal to one another, each of the angles is called a right angle; and the straight line which... | |
| Euclides - 1848
...of two straight lines to one another, which meet together, but are not in the same straight line. X. **When a straight line standing on another straight line, makes the adjacent angles equal to** each other, each of these angles is called a right angle ; and the straight line which stands on the... | |
| Charles Richson - 1848
...two straight lines to one another, which meet together, but are not in the same straight line." 2. **"When a straight line standing on another straight line makes the adjacent angles equal to** each other, each of these angles is called a right angle; and the straight line which stands on the... | |
| Elias Loomis - 1849 - 226 páginas
...the angle ECD is the difference between the two angles BCD, BCE. 10. When a straight line, meeting **another straight line, makes the adjacent angles equal to one another, each of** them is called a right angle, and the straight line which meets the other is called a perpendicular... | |
| Euclides, Thomas Tate - 1849 - 108 páginas
...equal (i. 8.) to the angle CHG; and they are adjacent angles; but when a straight line standing on a **straight line makes the adjacent angles equal to one another, each of** them is a right angle, and the straight line which stands upon the other is called a perpendicular... | |
| Janet Taylor - 1851 - 621 páginas
...points and quarter-points of the compass, cut off from the circle by the lines which form the angle. **When a straight line standing on another straight...stands on the other is called a perpendicular to it** : thus the line AC is perpendicular to DB, and makes with it the two adjacent angles CAD, CAB, equal... | |
| Ralph Smyth, Sir Henry Edward Landor Thuillier - 1851 - 718 páginas
...another, which meet together, but are not in the same straight line.* When a straight line standing upon **another straight line makes the adjacent angles equal to one another, each of** them is called a right angle, and the straight line which stands upon the other is called a perpendicular... | |
| Euclides - 1852
...is equal d to the angle CHG; ' and they are adjacent angles; but when a straight line standing on a **straight line makes the adjacent angles equal to one another, each of** them is a right angle; and the straight line which stands upon the other is called a perpendicular... | |
| Euclides - 1853
...CG; therefore (I. 8.) 3. The angle CHF is equal to the angle CHG; and they are adjacent angles; but **when a straight line standing on another straight...the adjacent angles equal to one another, each of** them is a right angle, and the straight line which stands upon the other is called a perpendicular... | |
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