 | Edward Atkins - 1874 - 428 σελίδες
...eHF^CHG But when a straight line, standing on another straight are "l""1line, makes the adjacent angles equal to one another, each of the angles is called...stands on the other is called a perpendicular to it (Def. 10). Therefore, from the given point C, a perpendicular has been drawn to the given straight... | |
 | William Alexander Myers - 1874 - 207 σελίδες
...standing on another straight line makes the adjacent angles equal to one another, each of the angles is a right angle, and the straight line which stands on the other is called a perpendicular to it; IKL are perpendiculars to the line GH. DEFINITIONS OF LINES AND ANGLES AA B C D H 15. Inclined lines,... | |
 | Euclides - 1874 - 120 σελίδες
...adjacent angles. But when a straight line, standing on another straight line, makes the adjacent angles equal to one another, each of the angles is called a right angle [Def. 10] ; therefore each of the angles DCF, ECF is a right angle. Therefore from the giveu point... | |
 | Euclid, James Bryce, David Munn (F.R.S.E.) - 1874 - 236 σελίδες
...and AOE, each of which is greater than two right angles. Such an angle is called a reflex angle. 10. An obtuse angle is that which is greater than a right angle, but less than two right angles. 11. An acute angle is that which is less than a right angle. 12. A... | |
 | L J V. Gerard - 1874 - 428 σελίδες
...ANGLES. DEFINITIONS. 11. A right angle is one of which the sides are perpendicular to one another. An obtuse angle is that which is greater than a right angle ; an acute angle is that which is less than a right angle. 12. When two angles are together equal to... | |
 | Robert Potts - 1876 - 446 σελίδες
...line standing on another straight line, makes the adjacent angles equal to one another, each of these angles is called a right angle ; and the straight...stands on the other is called a perpendicular to it. XL •An obtuse angle is that which is greater than a right angle. xn. An acute angle is that which... | |
 | Edward Atkins - 1876 - 130 σελίδες
...the angle E. 1 0. When a straight line standing on another straight lino makes tho adjacent angles equal to one another, each of the angles is called...right angle; and the straight line which stands on tho other is called a perpendicular to it. 1 1 . An obtuse angle is that which is greater than a right... | |
 | Richard Wormell - 1876 - 268 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of these angles is called a right angle ; and the straight line which stands on the other is said to be perpendicular to it. 19. When one straight line meeting another straight line makes the... | |
 | Isaac Todhunter - 1877 - 442 σελίδες
...following manner : when a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called...stands on the other is called a perpendicular to it. A Thus in the figure if the angle ABC is equal to the angle ABD each of them is a right angle, and... | |
 | Euclides - 1877 - 58 σελίδες
...line standing on another straight line makes the adjacent angles equal to one another, each of these angles is called a right angle; and the straight line which stands on the other is said to be perpendicular to it. 10. A plane figure is that which is inclosed by one or more lines.... | |
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When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it. 
