 | Robert Simson - 1806 - 546 σελίδες
...line standing on another straight lii>e makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight...stands on the other is 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... | |
 | John Playfair - 1806 - 320 σελίδες
...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...stands on the other is called a perpendicular to it. _____ VIII, Book I. An obtuse angle is that which is greater than a right angle. IX. An acute angle... | |
 | John Mason Good - 1813 - 714 σελίδες
...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...other is called a perpendicular to it. 11. An obtuse an¿le is that which is greater 'than a right angle. IS. An acnte angle is that which is less than... | |
 | John Playfair - 1819 - 350 σελίδες
...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...stands on the other is called a perpendicular to it. VIII. An obtuse angle is that which is greater than a right angle. An acute angle is that which is... | |
 | John Mason Good - 1819 - 800 σελίδες
...adjacent angles equal to one another, each of (lie angles is called и right angle; and the ira glu line which stands on the other is called a perpendicular to it. 11. An obtuse angle is that which is g cater than a right an^le. 12. Ли acute angle is that which ¡s less than a ri^ht angle. 13. " A... | |
 | Euclid, Robert Simson - 1821 - 514 σελίδες
...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. XI. An obtuse angle is that which is greater than a right angle. XII. An acute angle... | |
 | Peter Nicholson - 1825 - 1046 σελίδες
...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...angle is that which is greater than a right angle. ^ 12. An acute angle is that which is less than a right angle. 13. " A term or boundary is the extremity... | |
 | George Lees - 1826 - 276 σελίδες
...on another straight line CD, makes the adjacent angles ABC and ABD equal to one another, each of the angles is called a right angle, and the straight line,...stands on the other, is called a perpendicular to it. •D OF GEOMETRY. with another CD, upon one side of it, are eitlier two right angles, or are, together,... | |
 | Robert Simson - 1827 - 546 σελίδες
...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...stands on the other is called a perpendicular to it. XL An obtuse angle is that which is greater than a right angle. XII. An acute angle is that which is... | |
 | John Playfair - 1829 - 210 σελίδες
...straight line standing on another straight line makes the adjacent angles equal to each other, each of the angles is called a right angle; and the straight line...stands on the other is called a perpendicular to it. Otherwise. When a straight line standing on another straight line does not incline to either side of... | |
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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. 
