| Great Britain. Admiralty - 1846
...ABC; then /_ DBA + Z. 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. Let** AB make with DC, on the same side ABC=2rt. Zs DBCDBC If L ABC = L DBA, Der. 10. each of them is a rt.... | |
| Euclid, John Playfair - 1846 - 317 sider
...angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are **either two right angles, or are together equal to two right angles.** For, if the angle CBA he equal to ABD, each of them is a right angle (Def. 7.) ; but, if not, from... | |
| Euclides - 1846
...angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD : these are **either two right angles, or are together equal to two right angles.** For if the angle CBA be equal A to ABD, each of them is a right I \ ^ angle (Def. 10) : But if not,... | |
| Euclides - 1847
...THEOR. GEN. ENUN. — 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.** PART. ENUN. — Let the st. line AB make with CD, upon one side of it, Fig. 1. the Zs CBA, ABD; then... | |
| J. Goodall, W. Hammond - 1848
...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
...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... | |
| Euclides - 1848
...PROP. XIII. THEOREM. 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.** PROP. XIV. THEOREM. If, at a point in a straight line, two other straight lines, upon the opposite... | |
| Great Britain. Council on Education - 1848
...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... | |
| Euclides, Thomas Tate - 1849 - 108 sider
...angles. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD; these are **either two right angles, or are together equal to two right angles.** For, if the angle CBA be equal to ABD, each of them is a right (Def. 10.) angle; but, if not, from... | |
| Elias Loomis - 1849 - 226 sider
...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... | |
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