| Elias Loomis - 1849 - 252 pągines
...to each other. be proved that the angle ACD is equal to the angle EGH, PROPOSITION II. THEOREM. 77/o angles which one straight line makes with another,...angles, or are together equal to two right angles. if not, suppose the line BE to be drawn from the point B, perpendicular to CD; then will each of the... | |
| Euclid, Thomas Tate - 1849 - 120 pągines
...'Which was to be done. PROP. XIII. THEOR. The angles which one straight line makes with another upon the one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD; these are either two... | |
| 1850 - 488 pągines
...Describe the rise, and trace to its present position, the Order of Jesuits. GEOMETRY. SECTION I. 1. The angles which one straight line makes with another...angles, or are together equal to two right angles. 3. If two triangles have two sides of the one equal to two sides of the other, each to each, but the... | |
| Great Britain. Committee on Education - 1850 - 790 pągines
...using it. 3. Investigate the prismoidal formula. GEOMETRY. Secfion 1. 1. The angles which one right line makes with another upon one side of it are either...angles, or are together equal to two right angles. 2. If one side of a triangle be produced, the exterior angle is greater than either of the two interior... | |
| 1852 - 316 pągines
...our religious as well ai temporal well-being. WB EXAMINATION PAPER FOR PUPIL TEACHERSEUCLID PAPER, I. The angles which one straight line makes with another...angles, or are together equal to two right angles. II. In any right angled triangle, the square which is described upon the side subtending the right... | |
| 582 pągines
...Jamaica, or Hindostan, •with a map. shewing the chief rivers and towns. EUCLID. Prop. xiii. The anglrs which one straight line makes with another upon one...angles, or are together equal to two right angles. Prop, vi If two angles of a triangle be equal to each other, the sides also which subtend, or are opposite... | |
| Janet Taylor - 1851 - 674 pągines
...INTRODUCTION. THEOREMS. Theorem 1. [Euclid i. 13.] If one line falls on another the angles it makes with it are either two right angles, or are together equal to two right angles. Let AB meet the line DC, then the angles CDB CDA taken together are equal to two right angles. For... | |
| Euclides - 1852 - 152 pągines
...viii. 1. BOOK I. PROP. XIII. THEOR. The angles which one straight line makes with another upon the one side of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD: these are either two... | |
| Popular educator - 1852 - 842 pągines
...from Prop. XIII., Book I., which asserts that the anglet which one straight line mates with anoiJier upon one side of it, are either two right angles, or are together equal to two right any/is. The proof of the latter proposition is very easy ; for by referring to figs. 12 and 13, it... | |
| Euclides - 1853 - 178 pągines
...has been drawn to the given straight line a b. Which was to be done. PROPOSITION XIII. — THEOREM. The angles which one straight line makes with another...angles, or are together equal to two right angles. LET the straight line ab make with cd, upon one side of it, the angles cba, abd : these are either... | |
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