 | Charles Davies - 1854 - 446 páginas
...meets another straight line, so as to make the adjacent angles equal to each • other, each angle is called a right angle ; and the first line is said to be perpendicular to the second. 14. An ACUTE ANGLE is an angle lesa than a right angle. 15. An OBTUSE ANGLE is an angle... | |
 | Euclides - 1855 - 270 páginas
...very necessary to be remembered. X When a straight 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 called a perpendicular to it. By borrowing the terms vertical... | |
 | Adrien Marie Legendre, Charles Davies - 1857 - 442 páginas
...line meets another straight line, so as to make the idjacent angles equal to each other, each angle is called a right angle ; and the first line is said to be perpendicular to the second. 14. An ACUTE ANGLE is an angle .ess than a right angle. 15. An OBTUSE ANGLE is an angle... | |
 | Robert Potts - 1860 - 380 páginas
...called the angle DBC, or CBD. X. When a straight 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 called a perpendicular to it. XL An obtuse angle is that... | |
 | Euclides - 1863 - 122 páginas
...that point; as the angle at E. X. When a straight 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 tbo other is called a perpendicular to it —!— XI. An obtuse angle... | |
 | Marcius Willson - 1863 - 356 páginas
...to some other line. Thus a straight line is perpendicular to another straight line when it makes the two adjacent angles equal to one another. Each of these angles is called a right angle (see Chart). But if two straight lines meet each other so as to make but one right angle, each is said,... | |
 | Euclides - 1864 - 262 páginas
...called the angle DEC, or CBD. X. When a straight 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 called a perpendicular to it. XI. An obtuse angle is that... | |
 | Euclides - 1864 - 448 páginas
...called the angle DBC, or CBD. X. When a straight 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 called a perpendicular to it. XL An obtuse angle is that... | |
 | Robert Potts - 1865 - 528 páginas
...is called the angle DBC, or CBD, When a straight 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 liae which stands on the other ia called a perpendicular to it. XI. An obtuse angle is that... | |
 | Edward Clarke Lowe - 1866 - 172 páginas
...not in the same straight line. 10. When a straight 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 & perpendicular to it. 11. An obtuse angle is that which... | |
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When a straight 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 called a perpendicular to it. 
