 | John Weale - 1850 - 590 sider
...towards one another in the same plane, meeting in a point. Angles are either right, acute, or oblique. A right angle is that which is made by one line perpendicular...another, or when the angles on each side are equal. An acute angle is less than a right angle. An obtuse angle is greater than a right angle. A plane is... | |
 | Edward Shaw - 1852 - 426 sider
...towards one another, meeting in a point, as J. 15. Angles are either right, acute, or oblique, as K. 16. A right angle is that which is made by one line perpendicular...another, or when the angles on each side are equal, as M. 17. An acute angle is less than a right angle, as N,2. 18. An obtuse angle is greater than a... | |
 | Benjamin Greenleaf - 1853 - 380 sider
...different directions, and meeting in a point. 13. Angles are right or oblique, acute or obtuse. 14. A right angle is that which is made by one line perpendicular...or, when the angles on each side are equal to one an- _ other, they are right angles. 15. An oblique angle is one which is made by two oblique lines,... | |
 | Lucius D. Gould - 1853 - 234 sider
...directions and meeting at the same point, Fig. 9. 14. Angles are right or oblique ; acute or obtuse. 15. A right angle is that which is made by one line perpendicular to another. When the angles on each side are equal to one another, they are right angles, Fig. 11. 16. An oblique... | |
 | Lucius D. Gould - 1857 - 464 sider
...2 6 8 Fig. 5. I 3 DM¿LellLtth,26Struc¿ ¿ 14. Angles are right or oblique ; acute or obtuse. 15. A right angle is that which is made by one line perpendicular to another. When the angles on each side are equal to one another, they are right angles, Fig. 11. . 16. An oblique... | |
 | John Weale - 1859 - 622 sider
...towards one another in the same plane, meeting in a point. Angles are either right, acute, or oblique. A right angle is that which is made by one line perpendicular...another, or when the angles on each side are equal. An acute angle is less than right angle. An obtuse angle is greater than a right angle. A plane is... | |
 | William Grier - 1861 - 316 sider
...different directions, and meeting ir. a point. 14. Angles are Right or Oblique, Acute or Obtuse. 15. A Right Angle is that which is made by one line perpendicular...angle. 17. An Acute Angle is less than a right angle. 18. An Obtuse Angle is greater than a right angle. 19. Superficies are either Plane or Curved. 20.... | |
 | Great Britain. Committee on Education - 1864 - 332 sider
...it. A Tangent is a right line w hich touches but does not cut an arc. Angles are Right or Oblique. A Right Angle is that which is made by one line perpendicular to another. When the angles on each side of a line are equal to one another, they are right angles. An Oblique... | |
 | Gerardus Beekman Docharty - 1867 - 474 sider
...different directions and meeting in a point. 14. Angles are Right or Oblique, Acute or Obtuse. 15. A Right Angle is that which is made by one line perpendicular...angles on each side are equal to one another, they arc right angles. 16. An Oblique Angle is that which is made by two oblique lines, and is cither less... | |
 | James Page (ornamental draftsman and designer) - 1886 - 422 sider
...another in the same plane, meeting in a point, as fig. 9. Angles are either right, acute, or obtuse. A right angle is that which is made by one line perpendicular...another, or when the angles on each side are equal. All angles meet at a point; when this is the case, each is denoted by three letters. The right angle... | |
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A Right angle is that which is made by one line perpendicular to another. Or when the angles on each side are equal to one another, they are right angles. 
