| J. Goodall, W. Hammond - 1848 - 390 σελίδες
...equilateral triangle. Prove that the angles, which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. 2. The angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight... | |
| Great Britain. Committee on Education - 1848 - 606 σελίδες
...equilateral triangle. Prove that the angles, which one straight line makes with another upon one side of it are either two right angles, or are together equal to two right angles. 2. The angles at the base of an isosceles triangle are equal to each other. 3. Define parallel straight... | |
| Elias Loomis - 1849 - 252 σελίδες
...PROPOSITION II. THEOREM. 77/o angles which one straight line makes with another, upon one side of it, are either two right 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 σελίδες
...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... | |
| Great Britain. Committee on Education - 1850 - 790 σελίδες
...formula. GEOMETRY. Secfion 1. 1. The angles which one right line makes with another upon one side of it are either two right 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... | |
| 1850 - 488 σελίδες
...GEOMETRY. SECTION I. 1. The angles which one straight line makes with another upon one side of it, are either two right 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... | |
| 1852 - 314 σελίδες
...TEACHERSEUCLID PAPER, I. The angles which one straight line makes with another upon one side of it, are either two right 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... | |
| Janet Taylor - 1851 - 674 σελίδες
...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 σελίδες
...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 σελίδες
...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... | |
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