 | Euclides - 1845 - 546 pages
...called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is less than a right angle. XIII. A term or boundary is the extremity of any thing. XIV. A figure is that which is inclosed by... | |
 | Euclid - Geometry - 1845 - 218 pages
...right angle ; and the straight tine which stands on the other is called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. XIII. " A term or boundary is the extremity of any thing." XIV. A figure is that which is inclosed... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is less than a right angle. XIII. A term or boundary is the extremity of any thing. XIV. A figure is that which is enclosed by... | |
 | Euclides - 1846 - 292 pages
...called a perpendicular to it. xi. An obtuse angle is that which is greater than a right angle. xn. An acute angle is that which is less than a right angle. xin. A term or boundary is the extremity of any thing. xiv. A figure is that which is inclosed by one... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is less than a right angle. XIII. A term or boundary is the extremity of any thing. XIV. A figure is that which is enclosed by... | |
 | Euclides - 1847 - 128 pages
...called a perpendicular to it. 11. An obtuse angle is that which is greater than a right angle. 12. An acute angle is that which is less than a right angle. Thus the angles ABC, ABD are each of them right angles; EBC is an obtuse, and EBD an acute angle ;... | |
 | 458 pages
...THE DECORATORS ASSISTANT. Steps to DEFINITIONS OF PRACTICAL GEOMETRY. (Continued from page 5.) 18. AN acute angle is that which is less than a right angle, as n rr 19. An obttue angle it that which is greater than a right angle, as n E F. OBs.— An ingle... | |
 | John Bonnycastle - Geometry - 1848 - 320 pages
...formed by two lines that are perpendicular to each other.* il. An acute angle is that which is lesi than a right angle. 12. An obtuse angle is that which...right one, is, by some writers, called an oblique angle. 13 A circle is a plane figure, formed by the revolution of a right line about one of its extremities,... | |
 | Charles Richson - 1848 - 98 pages
...angles are described. DEFINITION. — " An obtuse angle is that which is greater than a right angle." " An acute angle is that which is less than a right angle." EXAMPLE IV.— To draw various angles in opposite sides of a horizontal or perpendicular. DIAGRAM,... | |
 | Euclides - 1848 - 52 pages
...called a perpendicular to it. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is less than a right angle. XIII. XIV. A figure is that which is inclosed by one or more boundaries. XV. A circle is a plane figure... | |
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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. 11. An obtuse angle... 
